Texture2D.PackTextures() With Padding=1 Blows Up Unity (2018.2.18f1)!!?

If you call the Texture2D.PackTextures() method and pass in a value of 1 for the padding parameter, Unity starts eating massive amounts of ram and finally crashes. If you pass in zero for padding, it works fine. If you pass in 2 or 3 for the padding parameter, it works fine. If you pass in a value of 1 for the padding parameter, Unity goes completely insane and self destructs like I said! lol

I changed nothing in the code except the value of the padding parameter, so my code is not doing that. What the heck is going on!? It appears to be a serious bug? I probably won't use padding, but I was messing with it trying to solve another issue with seams appearing in my scene where quads meet. Each quad has one texture from my texture atlas fit on its surface because its voxel geometry. For example, if you have two wood plank blocks next to each other, there's a very thin black seam where they touch.

 

Yea no problem, bug report is filed now