V 25.11: keyboard shortcut not working and Contextual Task Bar flashing

Hello everyone,

I have recently upgraded to version 25.11 of Photoshop and like several others, I am not happy with the slowing down of my PC, while the new stunning things AI can do are of no real use to me.

However, I am writing about a different thing, and I will describe what's happening:

1. After developing my RAW file in Lightroom Classic, I export it into Photoshop for retouching.

2. Once that is done, I save my file as a TIFF.

3. Then, I create a JPEG by using File | Export | Save for Web (Legacy)... This is what I have always done, I find it more practical and better suited than the other, more recent export options, and I'd lie to continue to do it. I have forever used a custom keyboard shortcut to access that function: Ctrl-Alt-S, which worked just fine until this last version.

4. What happens now is that, sometimes, the shortcut works and calls up the Save for Web screen, but sometimes it doesn't. What happens then is that the Contextual Task Bar (which on my screen is parked in the bottom right angle) flashes very briefly, and nothing else happens.

I thought there was a shoertcut conflict somewhere but I cannot find it. Moreover, when I assign a different shortcut combination to my Save for Web function, it still doesn't work, and I have the same symptom of the Contextual Task Bar briefly flashing. Nothing else that I can see is happening. It happens regardless of whether I used the Contextual Task Bar while retouching that particular photo or not.

When I restart Photoshop entirely, the shortcut works again... until it stops working, and I cannot figure out why, and what to do about it.

I am considering reverting to the previous version.

Would anyone have a clue about why this is happening? Many thanks in advance!

Dominique