Mac safari tabs won't stay closed
I have several tab groups that should sync across my Mac (Monterey 12.1/Safari 15.2), my phone, and my iPad. They seem to behave normally on the mobile devices but I can't seem to close tabs in several of my tab groups on the Mac. If I click on the x they go away then just pop back open in a few seconds.
If I close the same tabs on one of the mobile devices they seem to close and stay closed on that device but that doesn't sync back to the Mac.
I've tried Develop>Empty Caches in Safari and have tried closing Safari and re-opening it. Neither makes any difference. Any suggestions?
MacBook Air (2020 or later)