This problem started today and the only thing I have worked on was a hex map (so a tile of grass/trees/whatnot for each hex) and I hope thats not the reason... At some point 2 players joined and they goofed around a bit as players do ( :) ), using the measurement tool to point out where all the monsters will be that will kill them for some reason. This was when we noticed that I couldn't actually see either of theirs (same with pings) and the same thing occurred for them. Everyone can only see their own ping circles & measurement lines. This happens on all of the maps of this campaign now (it did work yesterday), a copy of the campaign showed the issue as well. We are using no API scripts, a custom Numenera character sheet and said Hex map. Could it be that there are too many tiles on one map which is affecting every map, and only the pings and measurements? It seems an odd thing to break. Any help would be greatly appreciated. edit: Making a new campaign altogether and copying the custom character sheet as well as the map does not reproduce the problem. I'm stumped.