This just started. 115.11.1 (64-bit) I cannot select multiple messages in any folder and move them to any other folder/ Filters will not work either. As an example, I select 3 messages if my inbox and try to drag them to trash I get an error popup that says "The messages could not be moved or copied to folder 'Trash on Local Folders' because writing to folder failed. To gain disk space, from the File menu, first choose Empty Trash, and then choose Compact Folders, and then try again." Trash folder had been compacted and emptied. Thanks for any help.