There doesn't appear to be although this entry:
2017-05-23 06:56:29,830 - ERROR - UM.PluginRegistry.loadPlugin [91]: Plugin VersionUpgrade24to25 did not return any objects to register
might be relevant. The rest of the 'ERROR' entries I get in the log appears to be connected to 3MFReader, Savitar, and UM3NetworkPrinting.
Here are the entries in the log labeled ERROR:
2017-05-23 06:56:29,844 - ERROR - UM.Logger.logException [74]: Exception: Import error loading module 3MFReader2017-05-23 06:56:29,844 - ERROR - UM.Logger.logException [78]: Traceback (most recent call last):2017-05-23 06:56:29,844 - ERROR - UM.Logger.logException [78]: File "/usr/lib/python3.6/site-packages/UM/PluginRegistry.py", line 293, in _findPlugin2017-05-23 06:56:29,844 - ERROR - UM.Logger.logException [78]: module = imp.load_module(plugin_id, file, path, desc)2017-05-23 06:56:29,845 - ERROR - UM.Logger.logException [78]: File "/usr/lib/python3.6/imp.py", line 244, in load_module2017-05-23 06:56:29,845 - ERROR - UM.Logger.logException [78]: return load_package(name, filename)2017-05-23 06:56:29,845 - ERROR - UM.Logger.logException [78]: File "/usr/lib/python3.6/imp.py", line 216, in load_package2017-05-23 06:56:29,845 - ERROR - UM.Logger.logException [78]: return _load(spec)2017-05-23 06:56:29,845 - ERROR - UM.Logger.logException [78]: File "", line 675, in _load2017-05-23 06:56:29,845 - ERROR - UM.Logger.logException [78]: File "", line 655, in _load_unlocked2017-05-23 06:56:29,845 - ERROR - UM.Logger.logException [78]: File "", line 678, in exec_module2017-05-23 06:56:29,845 - ERROR - UM.Logger.logException [78]: File "", line 205, in _call_with_frames_removed2017-05-23 06:56:29,845 - ERROR - UM.Logger.logException [78]: File "/usr/lib/cura/plugins/3MFReader/__init__.py", line 5, in 2017-05-23 06:56:29,845 - ERROR - UM.Logger.logException [78]: from . import ThreeMFReader2017-05-23 06:56:29,846 - ERROR - UM.Logger.logException [78]: File "/usr/lib/cura/plugins/3MFReader/ThreeMFReader.py", line 23, in 2017-05-23 06:56:29,846 - ERROR - UM.Logger.logException [78]: import Savitar2017-05-23 06:56:29,846 - ERROR - UM.Logger.logException [78]: ModuleNotFoundError: No module named 'Savitar'2017-05-23 06:56:29,846 - ERROR - UM.PluginRegistry._populateMetaData [249]: Could not find plugin 3MFReader2017-05-23 06:56:29,848 - ERROR - UM.Logger.logException [74]: Exception: Import error loading module 3MFReader2017-05-23 06:56:29,848 - ERROR - UM.Logger.logException [78]: Traceback (most recent call last):2017-05-23 06:56:29,848 - ERROR - UM.Logger.logException [78]: File "/usr/lib/python3.6/site-packages/UM/PluginRegistry.py", line 293, in _findPlugin2017-05-23 06:56:29,849 - ERROR - UM.Logger.logException [78]: module = imp.load_module(plugin_id, file, path, desc)2017-05-23 06:56:29,849 - ERROR - UM.Logger.logException [78]: File "/usr/lib/python3.6/imp.py", line 244, in load_module2017-05-23 06:56:29,849 - ERROR - UM.Logger.logException [78]: return load_package(name, filename)2017-05-23 06:56:29,849 - ERROR - UM.Logger.logException [78]: File "/usr/lib/python3.6/imp.py", line 216, in load_package2017-05-23 06:56:29,849 - ERROR - UM.Logger.logException [78]: return _load(spec)2017-05-23 06:56:29,849 - ERROR - UM.Logger.logException [78]: File "", line 675, in _load2017-05-23 06:56:29,849 - ERROR - UM.Logger.logException [78]: File "", line 655, in _load_unlocked2017-05-23 06:56:29,849 - ERROR - UM.Logger.logException [78]: File "", line 678, in exec_module2017-05-23 06:56:29,849 - ERROR - UM.Logger.logException [78]: File "", line 205, in _call_with_frames_removed2017-05-23 06:56:29,849 - ERROR - UM.Logger.logException [78]: File "/usr/lib/cura/plugins/3MFReader/__init__.py", line 5, in 2017-05-23 06:56:29,850 - ERROR - UM.Logger.logException [78]: from . import ThreeMFReader2017-05-23 06:56:29,850 - ERROR - UM.Logger.logException [78]: File "/usr/lib/cura/plugins/3MFReader/ThreeMFReader.py", line 23, in 2017-05-23 06:56:29,850 - ERROR - UM.Logger.logException [78]: import Savitar2017-05-23 06:56:29,850 - ERROR - UM.Logger.logException [78]: ModuleNotFoundError: No module named 'Savitar'2017-05-23 06:56:29,853 - ERROR - UM.Logger.logException [74]: Exception: Import error loading module 3MFWriter2017-05-23 06:56:29,853 - ERROR - UM.Logger.logException [78]: Traceback (most recent call last):2017-05-23 06:56:29,853 - ERROR - UM.Logger.logException [78]: File "/usr/lib/python3.6/site-packages/UM/PluginRegistry.py", line 293, in _findPlugin2017-05-23 06:56:29,853 - ERROR - UM.Logger.logException [78]: module = imp.load_module(plugin_id, file, path, desc)2017-05-23 06:56:29,853 - ERROR - UM.Logger.logException [78]: File "/usr/lib/python3.6/imp.py", line 244, in load_module2017-05-23 06:56:29,853 - ERROR - UM.Logger.logException [78]: return load_package(name, filename)2017-05-23 06:56:29,854 - ERROR - UM.Logger.logException [78]: File "/usr/lib/python3.6/imp.py", line 216, in load_package2017-05-23 06:56:29,854 - ERROR - UM.Logger.logException [78]: return _load(spec)2017-05-23 06:56:29,854 - ERROR - UM.Logger.logException [78]: File "", line 675, in _load2017-05-23 06:56:29,854 - ERROR - UM.Logger.logException [78]: File "", line 655, in _load_unlocked2017-05-23 06:56:29,854 - ERROR - UM.Logger.logException [78]: File "", line 678, in exec_module2017-05-23 06:56:29,854 - ERROR - UM.Logger.logException [78]: File "", line 205, in _call_with_frames_removed2017-05-23 06:56:29,854 - ERROR - UM.Logger.logException [78]: File "/usr/lib/cura/plugins/3MFWriter/__init__.py", line 6, in 2017-05-23 06:56:29,854 - ERROR - UM.Logger.logException [78]: from . import ThreeMFWriter2017-05-23 06:56:29,854 - ERROR - UM.Logger.logException [78]: File "/usr/lib/cura/plugins/3MFWriter/ThreeMFWriter.py", line 11, in 2017-05-23 06:56:29,854 - ERROR - UM.Logger.logException [78]: import Savitar2017-05-23 06:56:29,855 - ERROR - UM.Logger.logException [78]: ModuleNotFoundError: No module named 'Savitar'2017-05-23 06:56:29,855 - ERROR - UM.PluginRegistry._populateMetaData [249]: Could not find plugin 3MFWriter2017-05-23 06:56:29,856 - ERROR - UM.Logger.logException [74]: Exception: Import error loading module 3MFWriter2017-05-23 06:56:29,857 - ERROR - UM.Logger.logException [78]: Traceback (most recent call last):2017-05-23 06:56:29,857 - ERROR - UM.Logger.logException [78]: File "/usr/lib/python3.6/site-packages/UM/PluginRegistry.py", line 293, in _findPlugin2017-05-23 06:56:29,857 - ERROR - UM.Logger.logException [78]: module = imp.load_module(plugin_id, file, path, desc)2017-05-23 06:56:29,857 - ERROR - UM.Logger.logException [78]: File "/usr/lib/python3.6/imp.py", line 244, in load_module2017-05-23 06:56:29,857 - ERROR - UM.Logger.logException [78]: return load_package(name, filename)2017-05-23 06:56:29,857 - ERROR - UM.Logger.logException [78]: File "/usr/lib/python3.6/imp.py", line 216, in load_package2017-05-23 06:56:29,858 - ERROR - UM.Logger.logException [78]: return _load(spec)2017-05-23 06:56:29,858 - ERROR - UM.Logger.logException [78]: File "", line 675, in _load2017-05-23 06:56:29,858 - ERROR - UM.Logger.logException [78]: File "", line 655, in _load_unlocked2017-05-23 06:56:29,858 - ERROR - UM.Logger.logException [78]: File "", line 678, in exec_module2017-05-23 06:56:29,858 - ERROR - UM.Logger.logException [78]: File "", line 205, in _call_with_frames_removed2017-05-23 06:56:29,858 - ERROR - UM.Logger.logException [78]: File "/usr/lib/cura/plugins/3MFWriter/__init__.py", line 6, in 2017-05-23 06:56:29,858 - ERROR - UM.Logger.logException [78]: from . import ThreeMFWriter2017-05-23 06:56:29,858 - ERROR - UM.Logger.logException [78]: File "/usr/lib/cura/plugins/3MFWriter/ThreeMFWriter.py", line 11, in 2017-05-23 06:56:29,858 - ERROR - UM.Logger.logException [78]: import Savitar2017-05-23 06:56:29,858 - ERROR - UM.Logger.logException [78]: ModuleNotFoundError: No module named 'Savitar'
2017-05-23 06:56:29,923 - ERROR - UM.Logger.logException [74]: Exception: Import error loading module UM3NetworkPrinting2017-05-23 06:56:29,924 - ERROR - UM.Logger.logException [78]: Traceback (most recent call last):2017-05-23 06:56:29,924 - ERROR - UM.Logger.logException [78]: File "/usr/lib/python3.6/site-packages/UM/PluginRegistry.py", line 293, in _findPlugin2017-05-23 06:56:29,924 - ERROR - UM.Logger.logException [78]: module = imp.load_module(plugin_id, file, path, desc)2017-05-23 06:56:29,924 - ERROR - UM.Logger.logException [78]: File "/usr/lib/python3.6/imp.py", line 244, in load_module2017-05-23 06:56:29,924 - ERROR - UM.Logger.logException [78]: return load_package(name, filename)2017-05-23 06:56:29,924 - ERROR - UM.Logger.logException [78]: File "/usr/lib/python3.6/imp.py", line 216, in load_package2017-05-23 06:56:29,924 - ERROR - UM.Logger.logException [78]: return _load(spec)2017-05-23 06:56:29,924 - ERROR - UM.Logger.logException [78]: File "", line 675, in _load2017-05-23 06:56:29,924 - ERROR - UM.Logger.logException [78]: File "", line 655, in _load_unlocked2017-05-23 06:56:29,925 - ERROR - UM.Logger.logException [78]: File "", line 678, in exec_module2017-05-23 06:56:29,925 - ERROR - UM.Logger.logException [78]: File "", line 205, in _call_with_frames_removed2017-05-23 06:56:29,925 - ERROR - UM.Logger.logException [78]: File "/usr/lib/cura/plugins/UM3NetworkPrinting/__init__.py", line 3, in 2017-05-23 06:56:29,925 - ERROR - UM.Logger.logException [78]: from . import NetworkPrinterOutputDevicePlugin2017-05-23 06:56:29,925 - ERROR - UM.Logger.logException [78]: File "/usr/lib/cura/plugins/UM3NetworkPrinting/NetworkPrinterOutputDevicePlugin.py", line 7, in 2017-05-23 06:56:29,925 - ERROR - UM.Logger.logException [78]: from zeroconf import Zeroconf, ServiceBrowser, ServiceStateChange, ServiceInfo # type: ignore2017-05-23 06:56:29,925 - ERROR - UM.Logger.logException [78]: ModuleNotFoundError: No module named 'zeroconf'2017-05-23 06:56:29,925 - ERROR - UM.PluginRegistry._populateMetaData [249]: Could not find plugin UM3NetworkPrinting2017-05-23 06:56:29,928 - ERROR - UM.Logger.logException [74]: Exception: Import error loading module UM3NetworkPrinting2017-05-23 06:56:29,929 - ERROR - UM.Logger.logException [78]: Traceback (most recent call last):2017-05-23 06:56:29,929 - ERROR - UM.Logger.logException [78]: File "/usr/lib/python3.6/site-packages/UM/PluginRegistry.py", line 293, in _findPlugin2017-05-23 06:56:29,929 - ERROR - UM.Logger.logException [78]: module = imp.load_module(plugin_id, file, path, desc)2017-05-23 06:56:29,929 - ERROR - UM.Logger.logException [78]: File "/usr/lib/python3.6/imp.py", line 244, in load_module2017-05-23 06:56:29,929 - ERROR - UM.Logger.logException [78]: return load_package(name, filename)2017-05-23 06:56:29,929 - ERROR - UM.Logger.logException [78]: File "/usr/lib/python3.6/imp.py", line 216, in load_package2017-05-23 06:56:29,929 - ERROR - UM.Logger.logException [78]: return _load(spec)2017-05-23 06:56:29,929 - ERROR - UM.Logger.logException [78]: File "", line 675, in _load2017-05-23 06:56:29,929 - ERROR - UM.Logger.logException [78]: File "", line 655, in _load_unlocked2017-05-23 06:56:29,929 - ERROR - UM.Logger.logException [78]: File "", line 678, in exec_module2017-05-23 06:56:29,930 - ERROR - UM.Logger.logException [78]: File "", line 205, in _call_with_frames_removed2017-05-23 06:56:29,930 - ERROR - UM.Logger.logException [78]: File "/usr/lib/cura/plugins/UM3NetworkPrinting/__init__.py", line 3, in 2017-05-23 06:56:29,930 - ERROR - UM.Logger.logException [78]: from . import NetworkPrinterOutputDevicePlugin2017-05-23 06:56:29,930 - ERROR - UM.Logger.logException [78]: File "/usr/lib/cura/plugins/UM3NetworkPrinting/NetworkPrinterOutputDevicePlugin.py", line 7, in 2017-05-23 06:56:29,930 - ERROR - UM.Logger.logException [78]: from zeroconf import Zeroconf, ServiceBrowser, ServiceStateChange, ServiceInfo # type: ignore2017-05-23 06:56:29,930 - ERROR - UM.Logger.logException [78]: ModuleNotFoundError: No module named 'zeroconf'
Here's a link to the complete log if you or anyone else wants to take a look at it: Pastebin.
Also, I started my Windows 10 partition and installed Cura 2.5. Everything works there. Thinking that this might be isolated to just Arch Linux, I installed it on my notebook with a Intel HD Graphics 3000 and I could step through individual layers (although not ranges of layers). This seemed to put it in some kind of "compatibility mode".