The similar problem can be reproduced with a simple playground and a createcylinder function as well… https://playground.babylonjs.com/#BEFOO#1432
Seems that the cylinder gets a bit speedy and… Wait a minute, does this have something to do with the plane width/height and its subdivisions? https://playground.babylonjs.com/#BEFOO#1434 At least when increased I can see the erratic behavior at once 