I can confirm this bug! Replicate by opening 3 or more PDFs. Assuming PDF #1 is being viewed do not view PDFs #s 2 and 3 and hover over the 'x' of the tab of PDF #2 and close PDF #2. If the unviewed PDF #3 tab is immediately adjacent to the right of unviewed PDF #2 then it will also close!
Note, Adobe does not close more than one right adjacent tab and neither will it close your current view (if you choose to close an unviewed tab adjacent to the left of your currently viewed tab). It is consistently replicated before and after app updates and computer restarts.
I can confirm this bug! Replicate by opening 3 or more PDFs. Assuming PDF #1 is being viewed do not view PDFs #s 2 and 3 and hover over the 'x' of the tab of PDF #2 and close PDF #2. If the unviewed PDF #3 tab is immediately adjacent to the right of unviewed PDF #2 then it will also close!
Note, Adobe does not close more than one right adjacent tab and neither will it close your current view (if you choose to close an unviewed tab adjacent to the left of your currently viewed tab). It is consistently replicated before and after app updates and computer restarts.