ClimbPro shows non-existent climbs with ridiculous numbers

Hello,

Since I guess a few months both mine as my wife's Edge 840 shows non-existent climbs in ClimbPro, with ridiculous numbers such as 37.000m elevation (see picture) . In my last ride I should have ended up on the moon I guess. 

The routes are made in Strava Routes and uploaded via bluetooth to the Edge 840. Anyone having a clue what could be the issue here?