Have been using Ultimaker Cura 5.4 for a while but now application does not open - any ideas why this has happened. Below is what appears when open Cura.

[Andrerad 0]

[Slashee_the_Cow 382]

Could you please upload your cura.log file? In Windows you'll find it in %APPDATA%\cura\5.4\

[MariMakes 201]

I have a couple of questions to narrow it down.

1. Do you have multiple monitors? Does Cura start if you disable one of the monitors?
2. Do you have two monitors placed above each other? Can you try this workaround from the community? https://community.ultimaker.com/topic/42633-cura-522-stopped-working/#comment-318105
3. Do you have GPU Tweak OSD overlay enabled? Does Cura start if you disable that software?
4. Do you have a Ryzen Graphics card? Can you try this workaround? https://support.makerbot.com/s/article/1667412437627
5. Do you have the Nahimic audio enhancement service enabled? Can you try this workaround? https://github.com/Ultimaker/Cura/issues/12102#issuecomment-1157907665
6. If your problem is related to scaling, can you try this workaround from the community? https://community.ultimaker.com/topic/41458-ultimaker-cura-510-window-scaling-problem/#comment-311838
7. Are you the Administrator on your device? Could you try to right-click the shortcut and "Run as administrator"?

[Slashee_the_Cow 382]

10 hours ago, MariMakes said:

Are you the Administrator on your device? Could you try to right-click the shortcut and "Run as administrator"?

I don't know if this counts as ironic by the human definition, but last time I tried running the AppImage as root (which was 5.4) it just crashed, I had to run it as a regular user. But that's probably just a Linux thing.