Null pointer to UberGraph ? Please help

Hi,

I’am having a crash when trying to upgrade a blueprint project from 4.23 to 4.25.
The issue seems to be a actor EnemyVehicle.

Looks like the problem is here.

What this does tell me ? Looks like there is a Null pointer when it shouldn’t be null ?

I really need help, please.

EDIT: looks like all my BP classes that get values from structs have this issue. Any ideas ?