Publish Service Mark up to date misses images
I'm running LR7 (Classic) 7.3.1 on Windows/10.
Recently (perhaps since 7.3 but perhaps a bit before that), When I open a Publish Service collection and select several or all images in the "Modified Photos to Re-Publish" section, then right click on one of them and select 'Mark as up to date', it moves some of them to the "Published" section but not all of them. I have to then right click and "mark as up to date" again on the remaining ones and sometimes repeat one or two more times in order to get them all.
Is this a known problem? If there a known solution? If not, any ideas before I report it to Adobe?
thanks -- Dan