Thanks in advance for the help! I have edited the body of my original question to hopefully be more precise.
I have multiple Adventure Labs that were completed on Nov. 25th on a road trip through Alabama and Georgia. Several of these completed labs show as being completed on the 26th. (Please see comments for details)
Additionally, my 400th cache milestone (on the 24th of November) should have been the one that is shown on my Geocaching.com profile:
The Director's Travel Bug Hotel,
not the Adventure Lab:
Old Bob Sikes Library
shown here, so I am suspecting there is another issue with timing of lab caches.
I have ran the self support jobs with no luck. I would greatly appreciate any guidance in solving this! :)