PhysX3.4 in UE4.26 IOS platform PxRigidDynamic return Transform is invalid contains float is Nan！

[zouqingwei12]

I use the Vehicle to collide with the Ragdoll，Random Crash。I debug Code in Xcode, I see PxRigidDynamic transform and rotation is nan。 I found other people also have thesame problem，Their feedback may be a problem of RigidData，may be the triangle too big too stringy，but I see the RidgidData is ConvexMesh and No obvious problems in PC。

I have no idea how to solve this problem，If you have ideas, I hope you can help me。Thanks！！！

[zouqingwei12]

I also has an other question，I use Scene Queries Sweeps Raycasts SomeTime HitPoint's Position is Nan! I see the hit Actor is ConvexMesh，it has many Convexs。