P: Inconsistent JPEG quality with 1-7 slider in Export As

Excellent! I'm glad you managed to replicate the issue.

I'm looking forward to a fix. 🙂

OK, breaking news <g>

Quick Export two times. 7 set in prefs.

1. Legacy on.

2. Legacy off.

The only difference is this checkbox:

There IS a difference when I subtract the two:

And even though the image was in sRGB, in both cases, the resulting JPEG opens untagged. Yet another bug (stripping out an existing sRGB profile). 

I will file an internal pre-release bug report and upvote here.

Yes, that will trigger the bug. Legacy On will be a much worse quality JPG than Legacy Off.

Yep 😉

I'll try this soon (not home):

Quick Export two times. 7 set in prefs.

1. Legacy on.

2. Legacy off.

Compare. 

Sound right?

7 not being treated as max, but as 7%.

Are you using Legacy Quick Export? I don't see how you can possibly be getting "identical" results by doing the same thing I'm doing. 

My exact workflow for saving a JPG with Legacy Quick Export is:

Set the Export Preferences just like they are in the screenshot from my previous post.

File -> Export -> Quick Export as JPG (or hit the hotkey I've set for that menu).

Photoshop prompts me for where to save the file, and I press Save.

That's it. There's no quality step where I can choose 1-12, like there is with the Save As dialog. There's no "1-100%" slider anywhere. The entire point of Quick Export is that it uses the pre-selected settings from the Expert Preferences, so you don't have to be prompted for them each time. 

> The bug is the value is not sticky.

No. The bug is that when using Legacy Quick Export, "7" does not mean "max quality" and you can't choose anything higher! It does mean max when using Normal Quick Export, but not Legacy. There is no way AT ALL to save a 100% quality JPEG using Legacy Quick Export. As I already explained in my previous comments.

This has been an extremely frustrating support experience. It's like you're not even reading my posts, and just completely dismissing my detailed and thorough explanations for what's wrong.

The bug is with legacy export checked.

The value not being sticky?

The bug is with legacy export checked.

With legacy export unchecked, there is no bug and no problem.

Closing and re-opening Photoshop doesn't make that slider go any higher than 7.  That is what makes this a bug.

Higher than 7?

The bug is the value is not sticky. Agreed. Once set, all is the same. If you select 7 (max) and apply this to an image, it reverts to 6 not 7. It should.