P: PS 27.7 Modern UI: Save For Web file names cannot copy/paste text

Using the latest Photoshop 27.7 with Modern User Interface enabled, in the file dialog launched from Save for Web you cannot copy/paste text into the file name. Also when you hit the escape key to cancel the file dialog and return to Save for Web screen, hitting escape a second time does not close out of Save for Web but command-period still does. If you avoid trying to copy/paste text the escape key still works correctly. Disabling Modern User Interface returns all the expected behavior. This is on a fresh machine set up a couple weeks ago.

Photoshop 27.7

macOS 15.7.5