Weird rotation issue

When I imported a blend file (a warped mesh-to-sphere with keyframes removed and converted to mesh), and place it in my unity scene; the rotation behaves really odd.

When I rotate y and z axis the sphere seems to rotate the same way, and if I change the x axis it also rotates the z axis (in the unity editor), and the texture seems to ‘flow’ like a river through the sphere.

What have I done wrong?
(I followed this blender answer) modifiers - Morph targets: A sphere shape turning into a cylindrical unwrapped sphere shape - Blender Stack Exchange

I’ve solved the weird ‘textures behaving like a river running through the sphere’ by recalculating the normals in blender, I figured this might be the problem as the shading wasn’t right in Unity. But I still get strange Unity Editor behaviour when changing one of the rotational values in play mode, and it changes another rotation value.