How can I fix problem with Preview refusing to delete files on an external drive?

I find that I generally cannot remove files on my main (hfs) external drive via Preview. I can remove them via a Finder window, and I can remove then from Terminal, just not Preview! If they're on my main drive (the internal SSD on my Mac Mini), I can remove them via Preview without any problem. Here's the directories (and security flags) for one file in question (foo.jpg): ls -l -d / /Volumes/ss /Volumes/ss/pics /Volumes/ss/pics/misc drwxr-xr-x 20 root wheel 640 Oct 12 2022 / drwxrwxr-x+ 97 root wheel 3366 Jul 26 22:49 /Volumes/ss drwxrwxr-x 33 sieler staff 1122 Jul 27 21:17 /Volumes/ss/pics drwxrwxr-x 13 sieler staff 442 Jul 27 21:24 /Volumes/ss/pics/misc -rw-r--r-- 1 sieler staff 3035137 Jul 19 12:40 foo.jpg Attempts to remove via Previe (e.g., right-click, select 'Move to Trash'; or left click and hit command-backspace) get a popup: You do not have permission to move the file "foo.jpg" to the trash. What's wrong with Preview? (And, can I fix it?) My external drive is: macOS Extended (Journaled) I'm on Monterey (12.6.1) *** **Update**: Oddly, Preview will let me rotate them and save them back in place, which effectively removes (and recreates) them, so it *has* access! And, since I can Finder-remove, or Terminal/rm-remove, I clearly have the rights to remove the file (and to access the .Trash folder). (Yes, the vast majority of other files on the drive are Preview removable.)