Preview Not Updating
Previews not updating as expected?
There have been some issues reported regarding slow (or non-existent) updates during a Time Machine run. The update capabilities of Marked may be impaired if Time Machine is using the portion of the drive where the file exists at the time. This will usually remedy itself when Time Machine finishes its run.
If you have trouble with Marked not responding to updates after Time Machine has completed its run, or at a time when Time Machine isn’t running at all, please file a ticket on the support site and we’ll troubleshoot this with you.