Hi John,
thank you for your reply.
I am running version 9.1.2 on PHP 8.0.8
There are no processes running so I can only currently assume it is a bug. I will file the issue in GitHub.
To hide it for now I have used
a[data-bs-original-title="Active Processes"] {
display:none!important ;
}
Not ideal as it flashes up and then disappears but it is a short term fix.
UPDATE: The issue seems to occur if you run the empty trash process to an already empty trash folder. I managed this purely whilst demonstrating to a client how to empty the trash without noticing that the folder was already empty. I can only then assume the process gets stuck in a loop as it has nothing to delete?