Hey Guys, Ted Here.
So I wanted to share this little small tip that I figured out with the Developer Forum’s community.
Problems rotating a Model that has unions
So, if you have an issue with rotating a model that has unions in it, and it does not allow you to rotate your model exactly across the X,Y, and Z axis, try inserting a part into the model and group your union’ed model and the inserted part together. Once you group it, it should rotate appropriately with the X, Y, and Z axis.
Here’s a video I recorded in studio of this problem, and how I fixed it:
Hope this helps! 