I’m glad you got it running on your Nexus, sorry for the trouble. There are still app bugs we’re hunting down.
There’s a pretty substantial app overhaul underway, right now the latest version is available through the beta program. I recommend trying the beta version on your tablet and seeing if that fixes the issue.
Note: the new firmware bundled with the beta app is not backwards compatible, so if you update the firmware from the beta version of the app, you will need to upgrade your other devices to use the beta app as well.
Hope this helps, best