P: Saving copy not saving over jpg file

Been following this thread for MONTHS. Every macOS update and Photoshop update brings hope, and disappointment. How loud do we need to shout?

Just updated Photoshop, praying this problem was fixed. It isn't. Extremely frustrating.

Came to add the .02 that this problem still exists with new 21.2 version.

BUT, here is the thing. With a SAVE AS, if you pick to save over a file, it confirms the overwrite but then makes a copy instead which is ridiculous and has led to actual problems with file management. YET, if you do s SAVE FOR WEB (legacy) and go through the steps to save over a file it will write over the file.

SO don't see how OS can be blamed for this, since it CAN be done.

MacOS Catalina 10.15.5
Photoshop 21.2.0

 

This has been happening in the last few releases of Photoshop on Mac OS Catalina. AND IS STILL IN THE LATEST 21.2.0 RELEASE.

All the Photoshop professionals who work on Mac and keep their computers up-to-date that I've talked to, are having this exact same issue and are also super frustrated. It forces uneccessary productivity and workflow problems on everyone.

Why would I want to unknowingly save a copy when I have explicitly pressed the button to "REPLACE" the file?

PLEASE FIX THIS.

A few other people have mentioned this, but I finally did it this week and everything "works as expected... kinda" for me now. (This won't help if you're working with TIFF images.)

My solution: Go to File -> Export -> Export Preferences...
Set the export pref to whatever you normally would use. For me, I set it to JPG with a quality of 10.
Go to Edit -> Keyboard Shortcuts...
Remove they keyboard shortcut for Save As... and map Shift+Command+S to the Quick Export option.

YMMV, but this has helped me. Thank you to those who have mentioned it on various posts.

I'm having the same issue. I use Photoshop a lot to create full screen graphics that get used in Premiere.  It used to be if I needed to change a word or something, I would do "File-Save As-Select the file name and format" and it would replace the file on my drive and it would replace my file in Premiere.  But if every file save as now only creates a copy, unfortunately my current project I need to fix quite a few files and then I'm going to end up doubles the amount of files on my drive and need to do "replace footage" in Premiere.  This issue is new to me.  Tried the "Full Disk Access" workaround and nada.  Not sure why it (Photoshop) won't allow you to uncheck "Save as copy" option.
I should mention that I use PNG format.

Hi, I found a fix. If you set your export, command +k > export to jpeg from png. Set the quality to 100. And then when you go to quick export, it overwrites the file. It took me a while to stop hitting the shortcut for save as, but that appears to be working for me.

Scratch that. Still broken and more annoying than ever.

Same here with Tif, i am currently testing different Photoshop versions on my MAcPRo 2019 with Catalina. This happens with Version 20.0.9. 
But I can't overwrite pictures either. Even if Photoshop suggests it and has full access to all folders in the security settings, just save a new file with a copy on the back and don't overwrite it even it asks to do so. This is a real problem because if you don't pay attention it can happen that you give the "old" picture by mistake and later on the newer one is overlooked with "copy" on your full desktop.
So, I know this is not all Photoshop – it is this over secured Catalina Os. But why are other apps able to overwrite files?
Updating to latest Version maybe helps but... later versions still freeze on my new Mac Pro (made a thread already) after an hour.
I'm using Photoshop since version 2 but now its getting more worse every update in my opinion.

Thanks Leslie! Worked for me too. Hopefully it stays fixed.