Hi ,
Thanks for your quick answer!
The crash does not occur in a clean blank project, but occurs in my main project, and also in new First Person and Third Person projects. So I guess it’s related to gravity (in a blank project I the player can touch the borders of the mesh and the editor doesn’t crash).
In the new Third Person project for instance, if I put the player above the initial staircase, the game crashes when the player hits the staircase (and not my static mesh from sketchup) :
So it’s not just the asset imported from Sketchup.