I'm not using any unusual map, just the built-in TopoActive map for Europe, recently updated.
Here is how to replicate the bug:
Press Start and go to Navigate -> Points of Interest -> All POIs -> Spell Search
Either enter part of a nearby business name like a supermarket or the complete name.
The watch will search for a couple of seconds and then crash https://www.youtube.com/watch?v=_VyZSY3wsyA
The bug is not case sensitive and happens whether the business name is in one of several words and you enter them with spaces.
Basically, Spell Search doesn't work.
Any fix or is it hopeless?