P: Saving copy not saving over jpg file

Still having the same issue here. Not sure what is different for you. 

I'm holding my breath in anticipation as the update downloads...

Latest Photoshop update fixes this bug :).

Aaron, the bug is not only for web format image, but Tiff, which you can't save with the "export as" option.

Nice find.  You could change the keybinding for export as to cmd+s to get around that awful shortcut too 😄

I imagine that file size discrepancy is Photoshop saving a psd with a jpeg file format.  That happens to me all the time.  -_-  The 'copy bug' is so much of a pain I've rolled back to CC19 - I'd rather deal with halide bottlenecks than this mess.  😞

That's insane!  "by design" - who's design?  Patrick from spongebob?

i found a work around to this and this is prob the way adobe wants you to save your jpegs. instead of save as, choose export as (command, option, shift, w) and then it doesn't create a copy and will save over the existing jpeg. you also don't have to flatten the file either. 

I am so disappointed right now, 21.1.1 still has this MAJOR issue and there have been 3 updates to PS. It's not funny at all Adobe!

Pretty sure this "official" answer is wrong "by design" for Mac subscription slaves. Adobe: You'll eat it and you'll like it. Patently ridiculous that the same function works on a Mac with "Save for web." LOL sorry Mac users wanting to "save as" and "Replace" that TIFF file.