Photoshop 26.3 won't open

Hi, I'm using Photoshop 26.3 on Windows 11.

It's not the first time that I'm using Photoshop 26.3 but this morning it just didn't want to open. I clicked the icon on the taskbar and the icon on the desktop and it wouldn't open.

The weird thing is that when I tried to downgrade to 26.1, it said I had to close Photoshop first BUT when I checked in the task manager, Photoshop was not listed as running.

So I had to restart my computer and downgrade to 26.1 before clicking any photoshop icon.

Back to 26.1, I could now open Photoshop.
Thank you for exploring what went wrong.