Epix - lock up.

Hello

My Epix locks up when a sync takes place.

I have tried this with several phones (Windows 8 and 10).

Pairing completes but on sync the watch locks up completely and needs a full reset to get it going again.

I have a ticket open with Garmin but other than update the software, reset, re-install they've not been any help.

Any ideas on how to resolve or at least suggestions on how to further troubleshoot would be appreciated.

TIA

Andrew