Empty window on Windows

ServerVersionName : - 2.0.7.1_beta_2023-05-25
BaseVersionName : 2.0.7.1_beta_2023-05-25

It is kind of strange. I restarted the computer then ran Duplicati again, the window still showed up. However, after some time, I opened it again and it doesn’t show up anymore. Now there are still two processes, but they are all in the background processes section of the task manager. Previously the process with that window shows up in the process section.

The window itself is a small, completely grey rectangle with larger width than height, which can’t be minimized. I downloaded Duplicati weeks ago and I’m not even aware of that Duplicati can autoupdate. The tray icon looked as usual. I don’t remember if Windows was updated before I opened Duplicati yesterday.