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The first post in this thread outlines the way to fix this issue. Once you have fixed it, a way to prevent the issue from happening is not logging in to an Ultimaker account, or making sure Cura can access the internet.

Generally speaking, Cura should not be ran as administrator. Doing so may result in other issues (like not being able to run Cura normally, ie not as administrator). Cura should not even try to write to that folder. Programs should not be able to write to folders in Program Files.

I vaguely remembered Lulzbot Cura has a setting to apply "fuzzy" movements in the Z direction, but I might be wrong. That is why I said Ultimaker Cura does has no setting to jitter the z axis, and asked if the user had been using Lulzbot Cura before. Incidentally Lulzbot Cura is stuck at version 3.6.something, so "going back to 3.6" may have some merit after all. But I know less about Lulzbit Cura than I know about Ultimaker Cura. Slightly rotating the model is a creative way to get a fuzzy pattern on top of some models, but you will have to experiment a bit to get a result that looks good. Due to how slicing works there is no way to get a uniform fuzziness at this point.

The "Compact Prepare Sidebar" plugin is the spiritual predecessor of the "Sidebar GUI" plugin, and only compatible with Cura 3.5/3.6:

The counter crossed 2 million cumulative downloads for all my plugins. Looking at the post date above, that means a million downloads in just under 11 months. That's sort of amazing.

You may be interested in this thread: To make your life easier, see if you can use ```the cryptography module instead of pynacl.

By tilting the model, you have oriented the faces in such a way that jittering X and Y is enough. There is still no jittering in the Z axis of the print.

You can - in most cases - include the module with your plugin and import it from there. It depends a bit on what module it is how much work it is to include it with your plugin. The OctoPrint plugin contains two pure-Python modules, and here is how they are imported: https://github.com/fieldOfView/Cura-OctoPrintPlugin/blob/3.5/OctoPrintOutputDevicePlugin.py#L27

Could you add a screenshot of the error? When the error is showing, just do Ctrl + PrintScreen, and then paste in a reply here. It will also help if you post a link to your Cura.log, which can be found in %APPDATA%\cura\4.9

See the Z seam alignment setting, and read this documentation: https://github.com/Ghostkeeper/SettingsGuide/blob/master/resources/articles/shell/z_seam_type.md

There is no way for us to know what is going wrong unless you say what NSIS error you get. I can only guess. And if I were to guess, I would say the download got interrupted or otherwise corrupted. Try downloading it again, perhaps with a different browser just in case.

From the log you provided, it looks like something is going wrong using a "shader". This is a bit of code that runs on your graphics card (GPU). Since older versions that worked before aren't working anymore either, I think a GPU driver update is causing your issues. Try finding a newer or older graphics driver for your laptop.

No, that is not it at all. Cura only "jitters" in the XY direction. Ultimaker Cura has never jittered in the Z direction.

@merph, when you print an object is it rotated or mirrored? There's a difference. Eg if you print a piece of text laying on the buildplate, does it come out readable or in mirrored image? I think you have your firmware misconfigured or a stepper motor plugged in the wrong way around. I have not heard of an Ender 5 user with your issue before, and AFAIK the origin of your Ender 5 should be at the front, not at the back.

There is an MSI, but it is only available for "Ultimaker Essentials" users. The EXE installer does not have a silent installation option. Having said that, it can be easily unzipped.

Your QML file must import UM 1.1 as UM, and then include UM.I18nCatalog{id: catalog; name: "cura"} as a child of something Item-like.

Please explain what you mean by "it wont let me past into the box"? There is no Copy/Cut/Paste context menu, but you can use the Ctrl-C/Ctrl-X/Ctrl-V keyboard shortcuts for the same functionality.

This seems to happen on systems with a Right-to-Left locale. You could switch to a Left-to-Right locale, downgrade to Cura 4.8, or wait for a version of Cura that fixes this issue.

The problem seems to be your starting gcode. You can specify where the head moves to before the filament priming happens in the start gcode (see Preferences -> Printers -> Machine Settings)

The materials in the Marketplace only come with profiles for Ultimaker printers, which are all 2.85 mm only.

Glad you like it.

Yes, that is very helpful. From that log, it looks like your printerprofiles etc should actually still be just fine from the zipped backup. The crash that happened seem to be caused by you being logged in to an Ultimaker Account, but something is going wrong checking your account. Did you have an internet connection when Cura crashed on startup? You could restore the entire backup zip, and edit the cura.cfg file to remove the line starting with ultimaker_auth_data = Removing that line will log you out of your account in Cura, and will let you start Cura even without an internet connection. Personally I don't log in to my account in Cura; I don't use any Cloud features myself.

Though I am not the creator of the "magic", my guess is it is as follows: The algorithm takes 3 consecutive points (that are part of an extruding move) and fits a circular arc to them. If an arc is found, it compares the arc to the two linear sections and checks the difference. If the difference is smaller than what is specified in the settings, (and some additional conditions are also met), the arc segment is accepted. Then I am guessing the next point is checked to be on the same curve. If it is not, then a new section of 3 consecutive point is taken.

The backups you can manage from within Cura are stored into the cloud. The backup that is created from the crash-screen is a local backup. To find the local backup, go to Help -> Show configuration folder. Then go up one folder. There should be a zip file there, containing your backup. To restore from that backup, you would place the respective files from that zip to the folder that opened when you pressed "Help -> Show configuration folder". However, if you just restore the full thing, then Cura will tell you again that an error has occurred offering you to backup and reset. You are going to have to find out which part(s) of the configuration has become corrupted, and not restore that.

In the General preferences, disable the option to “Restore window position on start”.