Stephanie, thank you for your response. As I went into the games to set up clear examples of what was going wrong (before sending you my game ID's), I figured it out myself. The first issue, anyway - isn't to do with the patch at all. The problem is that the Pythagorean theorem doesn't exist in D&D(diagonal movement is the same number of squares as horizontal or vertical movement). So the measuring tool will give you different values as you follow the perimeter of a character's vision radius, because it isn't supposed to be a radius. It should be a square (without the pythagorean theorem a circle becomes a square). Or should it? Should fireball be a square template as well? Maybe now that we have virtual tabletops we can start using the pythagorean theorem in TT-RPG's as a rule or even do away with grids entirely somehow. Anyways, on further examination my first bug wasn't really a bug but a design flaw, and probably not in roll20, but in D&D5e. I just happened to be running maps with diagonal passage ways as you released this patch. Sorry to add to what is probably already a super busy time for you. PS.The last bug I mentioned looks like it might be related to your issues but I don't know how to reproduce it so I'll just quiet myself until I do.