Right, and I did more tests to be more accurate:
- Explorer must be open.
- Groupy must be enabled.
- In Photoshop (v26.3), I open an image.
- I want to drag and drop another image from Explorer into this image into Photoshop.
- The image is dropped into the open image in Photoshop (it appears as a layer).
- At this point, pressing Ctrl+T in Photoshop does nothing.
- If I switch to another program or click elsewhere and then return to Photoshop, Ctrl+T starts working again.
So, it seems that the issue occurs when I drag and drop an image into Photoshop from Explorer and immediately try to use Ctrl+T to transform it.
It's as if, right after dragging the image into Photoshop from Explorer, Photoshop doesn't fully regain control over the Ctrl+T shortcut. Ctrl+T seems "frozen," while all other hotkeys and shortcuts work fine.
Quite weird... And if I disable Groupy, everything works fine again...