P: Saving copy not saving over jpg file

ROFL.  I hear you.

I decided to downgrade to Mojave. Had to do an erase and install. Installed the OS system that came with the computer (I think it was High Sierra). Upgraded that to Mojave and things are working as normal. Kinda a pain to do (backing up files, reinstalling software, etc), but it would have been a much bigger pain to deal with this glitch. Staying away from Catalina for now! 

LOL #funnynotfunny

And I look forward to the ones from the months to come.

Hello to everyone that's also getting countless email notifications from this post, hope you're well!

Today new Photoshop version available, let's see.....new version same problem, common!!!!!!

That is just stupid that it has been what 4-5 months now and still no fix.

Only feasible workaround that keeps me sane has been adding a shortcut to 'flatten image' that closely resembles the the 'Save as...' shortcut to keep things as fluid as possible.

Shift+⌘+F for Flatten
Shift+⌘+S for Save as...
and afterwards follow with
⌘+Z to remove Flattening

I upgraded to Catalina not too long ago and now I'm regretting it as I am having the same issue. NEVER have had a problem before until Catalina. Now I feel like the only solution is to downgrade to Mojave which is a bit of a pain in the butt to do. Seeing how this feed is going on 6months, you would think there would have been a patch by now. I feel everyone's pain. Sign indeed!

Seems to be fixed with 21.1.2. FINALLY #downsbottleofnearexpiredchampagne

The fervid indentured acolytes haplessly pleading to the impenetrable uncaring oracle.