Dim(ensia) issues

I’m having some weirdness with two objects. I don’t have an IPO linked to either of them, and their Loc values remain the same. In fact all their transformations remain the same - except DimX, DimY, DimZ. Whenever I hit play, their Dim values change, and the overall object changes against what I want.

If theirs no IPO linked to these objects, how can they move?

thanks

gravity is ever-present, and if they are not totally rigid, they deform a little…maybe?

thanks for the reply Papasmurf, but there’s no gravity or rigid joint constraint acting on it.

And I can’t upload the .blend as its under an NDA, not to mention I can’t reproduce the issue in a fresh file.