Tested with only The Furnace Module enabled on a map with vision enabled and light sources (and darkness at full, if that makes a difference).
Select Ignore Token Vision OFF and select a token - it correctly shows the token's view of the map
Pan the map and it pans correctly, moving the view with the map as it should
Select Ignore Token Vision ON whilst still having the token selected, and it seems to have no effect (it should remove the token's vision and show the whole map) - the vision of the selected token is still shown
Pan the map and the map pans, but the vision overlay stays in place (which looks weird) (Note that deselecting the token at this point has no effect - the vision remains as per the previously selected token, offset because you've panned the map)
This can be fixed by either changing scene and back again, or turning the Ignore Token Vision back OFF (which redraws the vision correctly), deselecting the token, then turning Ignore Token Vision back ON again (which shows the whole map and it starts working again).
Given the fix above (which I only just found - previously I was switching scenes to fix the issue), this is not a major problem, but does happen a lot in my games when I quickly switch to view a tokens vision, then turn it off without deselecting the token, causing this issue.
Tested with only The Furnace Module enabled on a map with vision enabled and light sources (and darkness at full, if that makes a difference).
Select Ignore Token Vision OFF and select a token - it correctly shows the token's view of the map Pan the map and it pans correctly, moving the view with the map as it should Select Ignore Token Vision ON whilst still having the token selected, and it seems to have no effect (it should remove the token's vision and show the whole map) - the vision of the selected token is still shown Pan the map and the map pans, but the vision overlay stays in place (which looks weird) (Note that deselecting the token at this point has no effect - the vision remains as per the previously selected token, offset because you've panned the map)
This can be fixed by either changing scene and back again, or turning the Ignore Token Vision back OFF (which redraws the vision correctly), deselecting the token, then turning Ignore Token Vision back ON again (which shows the whole map and it starts working again).
Given the fix above (which I only just found - previously I was switching scenes to fix the issue), this is not a major problem, but does happen a lot in my games when I quickly switch to view a tokens vision, then turn it off without deselecting the token, causing this issue.