Same issue on all of the XDJ line at the moment. I thought they had fixed it with the latest update/firmware but my XDJ-RX still does it.
I've given up on my thread and am just waiting at the moment. They must be aware as there are loads of threads on here about the same issue.
All my tracks are gridded the same way I've been doing it for years in Traktor and now in Rekordbox. My tracks also hold sync in RBDJ. Good job I can beatmatch by ear :P