Norns - won't connect to grid 64

Recently picked up a Grid 64 to use with Norns, but I can’t seem to get them connected. The top corner of the grid flashes when norns is powered up so I assume it’s getting power. Navigating to systems > devices > grid shows my 128 in the first slot but nothing below and the screen freezes every time. I’m unable to select/add the 64 because the screen is stuck. Sound will still play, but can’t go back or navigate anywhere else. Just have to hard restart. I’ve tried several times with charging cable in and out. Restarted and made sure everything was up to date, but still no luck.

Any ideas on anything else I can try to get them connected and working together?

Sounds fishy. Verify that the grid works ok on a regular computer?