My 18 JLUR use to do this a lot and it would randomly come back. My 21 has yet to do it.
If it continues and you havent made any changes try pulling fuse f97 and leave it out for an hour.
Lone Star Jeep Club is a solid group to wheel with.
We plan trips all over the country and locally. You can find the group on FB but most of our events are planned/posted about on the webpage.
I used the in dash nav in the 8.4 once and never again.
If you want tracks and don't want to spend money I highly recommend Gaia maps. Its compatible with android auto/carplay and works great for me and everyone else who I know that uses it.