Occluders have stopped being functional
Ok, following reports on Discord there is a problem with occluders and LOS.
I've been working on the occluders for Tomb of Annihilation on and off over the last couple of weeks. When I try to add occluders to a new map I get nothing; the lines don't show at all - just nothing happens. For maps which are already done it appears at first that the occluders are missing from those maps. Additionally the LOS button does not toggle LOS off or on (more below). However if I place any token on the map I am then able to see the occluders. But LOS still won't switch on or off. What does happen is that the token switches between visible and invisible. In play mode I can still mouse over occluders and they will show closed or open etc, but LOS itself is non functional.
If I open any other module in this campaign I can draw occulders on maps in that module. I have tried to relocate the xml file for maps that I have done to a new campaign but I get the same issues as in the original campaign.
I have looked at all the other campaigns that I have which were used to create occluders and all of them have the same issues.
This issue may be related somehow to resizing the map.
I tested on Lost Mines which I know to have had the occluders done and are included in the module. I opened Cragmaw Castle, unlocked the map and toggled LOS on. I then was able to move a token around and the occluders worked, I could see the occluders etc - everything normal. However as soon as I resized the map LOS disappeared; the occluders disappeared and the LOS toggle ceased to function.
Hopefully there's enough in this for you to diagnose the issue.