BEPUphysics

sorry
e.applyImpulse(e.centerOfMass, towardsplayer * 0.001f, true);
results in this
"Object reference not set to an instance of an object."
for no obvious reason
i did recently add the entity to the space maybe thats it
it works fine on all the entities i add during startup

forget that. somthing weirds going on.

i checked it i didn't add my entity to space like a fool. please delete this.

There was an unprotected reference to the entity's space in the applyAngularImpulse method (called from within the applyImpulse method). The applyImpulse method shouldn't require that an entity belongs to a space and this should be corrected in the next version.