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Cura 4.2.0 hangs on launch


aurock
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Posted (edited) · Cura 4.2.0 hangs on launch

I've installed Cura 4.2.0 on 2 computers, and can't get it to work on either one.  The first time I launch it, the splash screen loads, and hangs at 'Updating configuration.'  If I kill the process and try to launch Cura again, the icon appears briefly on the taskbar then disappears.  I get no splash screen, and the only way I know that it's running is that cura.exe is still listed in task manager.  

 

Both computers are running Windows 10 v1903 x64.  One of the computers had Cura 4.1 on it previously, which was uninstalled automatically when prompted by the Cura 4.2.0 installer.  The other computer did not have a prior version of Cura. 

 

Any suggestions would be appreciated. 

 

Edit: Cura.log attached.  The last lines of the log are:
2019-07-31 09:47:10,075 - DEBUG - [MainThread] UM.Backend.Backend._logSocketState [171]: Socket state changed to Listening
2019-07-31 09:47:11,708 - INFO - [MainThread] UM.Backend.Backend.startEngine [81]: Started engine process: C:\Program Files\Ultimaker Cura 4.2\CuraEngine.exe
2019-07-31 09:47:11,715 - DEBUG - [MainThread] UM.Backend.Backend._backendLog [101]: [Backend] Calling engine with: ['C:\\Program Files\\Ultimaker Cura 4.2\\CuraEngine.exe', 'connect', '127.0.0.1:49674', '']
 

cura.log

Edited by aurock
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    Posted · Cura 4.2.0 hangs on launch

    I ran the compatibility troubleshooter, and it recommended applying Windows 8 compatability settings.  With those settings in place, the application launches successfully.  Is there anything I can provide which would help identify the cause of this issue?

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