The car tent can only be installed on an extremely flat surface. Even such excellent surfaces as the ASPHALT ROAD often do not allow installing a tent, only after finding a very specific point, rotating 360 degrees in the process. This is a completely flat road, with no slope or obstacles.

The problem was noticed especially clearly when I removed and immediately tried to put the tent on the same place (where it had been for more than a month before!) and could not do it in any way. Moreover, this place was in a forest with a slight slope in and before that I installed that tent in this place without any problems. It seems that it is impossible to put a tent if the surface is even slightly different from the perfectly horizontal. I think we need to increase the tolerances.