Sandbox rotation type-in weirdness

I’m a bit unclear on how rotation works in BabylonJS. When I try typing values in the Inspector, I get very odd skewing and distortion.

1 meter cube, exported centered at the origin.
Max2Babylon 1.3.33, 3ds Max 2018.4.

I see weird default rotation values:

When I try typing in simple rotation values, I get odd scaling and skewing:

Also what is the W coordinate for?

This is because this is a rotation Quaternion :slight_smile:
not euler angles.

We plan to move all the rotations to euler only: