Montana 750i random freezes or powers off

Here is the scenario

Garmin 750i. Inreach tracking is on, at 10 mins.

Using the bicycle mount, not the power mount.

Motorcycle riding in Alaska. Temperature is 54 - 75F.

Software version is 8.50 bb853b7

GPS software version 2.80

Display software version is 85.07  

For six days, the unit worked fine with inreach tracking enabled. Everything worked as expected.

Yesterday, the Montana froze about 5 hours in to my ride.. I noticed that the mileage to destination was not updating. None of the touch icons on the left side of the screen were responding. Holding down the power button was not responding. I removed the battery, and reinserted the battery. 73% battery life remaining. Unit powered back up. I enabled inreach tracking again. Started working and tracking

Today, at around three hours, the unit powered off. I was able to push the power unit and have it come back up. When I went to look at the inreach tracking, it was stil enabled. The unit continued to work.

Anyone seen any issues like this?