The method chosen to fix the issue appears to have been changing the 10' grid with .5 size for 5' squares, to a 5' grid with .5 size for 2.5' squares. This makes all map measurement information inaccurate, not to mention contradicts descriptions of areas as written, the note about Grid Size which wasn't updated, or anything else. Asking DMs to have players just treat 2.5' squares as 5' squares for purposes of measurement adds a needless layer of pain of exactly the sort that Roll20 should be eliminating, and it's especially galling because lighting on 10' unit .5 size grids worked perfectly prior to the lighting update. I am curious how such a feature could have been lost, but I understand that code can be weird. With all of that said, yes, it made the lighting render in a way that, on face, seems correct - but given that the map itself has incorrect measurements, the lighting is...wrong. For example, a token with a theoretical 60' darkvision is shown to me, the DM, as having 30ft darkvision on the map. God only knows what it looks like to players, since I already know they don't see lighting the same as I do nowadays, even with Ctrl+L. EDIT: Apparently the ruler will be fixed to account for this. Thanks.