5X+ saphire crashes at the end of climbs?

So with the Climb Pro activated the climbs track just fine, only for the watch to restart after the Climb remaining length reaches 0, not the altitude. The watch restarts and pick up from where it crashed, bit this is a problem. Both for Komoot and GC created courses. 

This is verified on both the 11 and 12 firmwares, and the watch is restarted. Any ideas.