GrapheneOS-Jub Yes, USB recognition is fine and works on myP9PXL. But the automatic Backup when USB is inserted does not run the BackUp automatically (used to autorun on previous version). Likewise have you tested deleting/moving a file on the USB and the notification screen remains albeit the deletion/transfer has completed?
Ah, I see! I never use automatic backups. (I always do file backups manually through USB file transfer and a Obtainium backup config file)
Therefore I have indeed not tested that.
But I have indeed tested file copying and pasting, (back and forth) which is working fine. The notification vanishes when the task has completed, but some sticks are very slow and it stays at 100% until the process has been finalised, then the message will eventually disappear. Is that what you were referring to? The bigger the file, the longer it takes to finalize. (It is best not to remove a drive until it has finished completely and a message appears that you can remove the drive after you have pressed eject)
Edit: I have not seen any other notifications that persisted.
Furthermore, I am just another forum user, not a developer, therefore my knowlegde on the subject matter is limited, but perhaps someone else can anwser your question?