File name and extension highlight when saving on macOS 10.15 Catalina

Yet another reason to strongly consider a switch to Affinity. I honestly don't know how this problem (among others - i.e. Adobe Dreamweaver taking an hour and a half just to open) can persist for over a year with no solution. I can't imagine this is a huge ask from Adobe's development team. Then again... it is Adobe.

After having updated to Big Sur and PS 2021 I've been experiencing this problem as well and boy, is it aggrevating. Did a hive mind search on Twitter and people are telling me Adobe knows about it and its on the list to fix. 

Guess I have to live with it for now but boy, this one is frustrating. 😕😕

This is NOT the "correct answer." Why was this labeled as "solved" when it is still a major bug? 

why was this answer deemed "correct"? it does not address the OP problem. I just upgraded to Big Sur and now have this problem.

Very annoying workflow interruption.

I'm on Big Sur and still having the highlight issues when saving, so it is killing my work flow also. AND . . . still having the issue of save as not overitten the file, but rather making another copy. SO, that issue is still not fixed after all this time. 
For the highlight issue, I found that if I hit the tab key three times after hitting save as psd,  the save as window with the file name highlights. Sometimes, it just randomly highights on it's own out of nowhere though. Very strange and seems like it should be a very easy fix for Adobe. Does Adobe even review these comments and resolve these issues? I've never seen an issue/bug posted that was fixed. 

Geez! I thought it was just me but this is annoying but I did try the sugesstion to overtype filename and it did add the extension in InDesign. Haven't tried the other apps yet. I'm using Catalina 10.15.7.

Agreed this is driving me nuts as well, seem to be an issue with Catalina. So one slight workaround which may help. When the dialogue box apears 'arrow left' curser to left, 'option shift arrow right' to highlight to end of word or to '.' then type new name and save done. Hope that helps

I think I hav the TRUE ANSWER, as this is should not be marked as resolved. 

I think you will find the issue you describe only appears in Photoshop >> Save for Web (Legacy)....

Seems Adobe have not updated this type of file export.

In all other cases:

1. Finder >> Preferences >> Advanced >> CHECKED: Show all file name extentions
2. Photoshop >> [with open file] Save As (or Export As)
3. Filetype retains original type (in this case .psd)
4. Tap on file you wish to replace, or name file whatever you wish
5. Select filetype in dropdown menu below and automatically the suffix changes to correct filetype. 

Tip: Replace "Save for Web (Legacy)"  with "Export As" in Photoshop File Export menu. 

Hope this helps.

I thought this was isolated to Adobe products, but I just did extensive testing in Apple native and third-party apps, and found the anomaly in several. I'm on 10.15.6. I will be submitting a report to Apple. I wasn't seeing it in any of the other apps I use on a regular basis for saving or renaming, so it didn't even occur to me that it might be an issue with a component of the OS itself. I so rarely use Firefox, especially for download or saving out images or other files, but sure enough, it happens for me in Firefox as well.

I notice that all is normal in CC 2018 and CC 2019, just CC 2020 has this problem.

As discussed here: https://feedback.photoshop.com/photoshop_family/topics/file-name-and-extension-higlight-when-saving-on-osx?topic-reply-list[settings][page]=2#topic-reply-list

"The workarounds that I have been using are to either change the Format pop-up to something else and then changing it back (like Photoshop to Large Photoshop Document then back to Photoshop) or to move the text prompt with right arrow once, then left arrow four times, then shift up arrow.   Both get you to where you have just the filename selected without the ".psd".  Neither is ideal, of course."