Lightroom Classic 10 marks photos as Modified to Re-Publish after just viewing them
LrC 10 marks photos in Publish Collections as "Modified Photos to Re-Publish" when I just view them in the Library DEVELOP module.
As far as I can see, this happens for photos that do not have a current 1:1 preview rendered. When I click on them and - maybe also - zoom in, LR renders a new preview, and that seems to trigger it. please see update below
Needless to say, this can easily be resolved by using "Mark as Up-To-Date" - unless I have a photo that actually has changed that aren't published yet. Also, I have quite a few Publish Collections (I haven't counted but it's easily over 100) and it's quite a nuisance to chase after LR and clean up this mess.
Latest Mac OS Catalina, LrC 10.