Three recent updates, all failures

This app had been great for 4+ years. However, the last few updates have been unstable, unreliable or inaccurate (a big problem for a Nav app!).

The first automatic update caused the app to crash upon opening. I deleted the app and reinstalled (then had to re-download the 3gb of required files).

The reinstalled version worked, but crashes whenever the app went into the background (dont try to change music on a road trip).

The next update promised to fix the crashing problems, and it did. But it substituted them with other oddities. I cant set the "home" location anymore (the prompt is there, it just doesnt save), I cant change the vehicle icon, and many addresses are off by several hundred feet where they used to be dead accurate.
Those oddities are coupled with fun things like the app selectively muting itself, then crashing outright when it needs to recalculate the route because you missed its unannounced directions. Moreover the app is not nearly as responsive and seems to lag far more than it used to in the last version.
If the AppStore allowed for version rollback, I definitely would. But alas thats not possible, so I guess Im back to using AppleMaps.

BrendanGalligan about Garmin N. America, v2.11.1