Looking at the logs I see things like this:
Sep 5, 2019 8:37 AM: Checking file for changes /xxxxx/yyyyy/zzzz, new: False, timestamp changed: True, size changed: False, metadatachanged: True, 07/27/2019 13:27:00 vs 07/27/2019 13:27:00
It says Timestamp has changed, but shows the same value X vs Y. Any thoughts?