Hi, I have been and am still currently experiencing persistent issues with certain sub-aspects of the Updated Dynamic Lighting system (namely vision/lamp directionality) being lost, 'lost', and/or rendered inaccessible
until the upper governing switch is toggled off
then on again,
and the subsystem is subsequently re-enabled.
With a large number of hooded signal lamps or other directional sources on a map, this glitch can become rather tedious. Having to select each token upon entering a map and flip multiple switches in the settings so they can once again have the capability to be narrowed into a cone can take quite a while.
It's not fun for players or the DM when large swaths of secret map get revealed by broken (circular) lights, either. If Explorer Mode is on, this sometimes necessitates a full explorable-darkness resets between sessions on a single map to fix all the areas mistakenly illuminated, eliminating apparent progress for the sake of future game surprise integrity. This is a major time sink and I do not look forward to delaying games to relight my fully-mastered areas which should need no further changes outside of play.
This is a severe, gamebreaking, irregularly-repeating issue with a long, repetitive workaround and it is not always the same toggle causing the problems. Sometimes token vision becomes 360° regardless of prior setting until the above reset is performed, and this is suboptimal in survival-horror or low-light campaigns where FOV and line-of-lamp are important.
Hoping some fix is forthcoming,
An old hand DM with anxiety about their upcoming maps
Additional note: pressing 'save' after entering the token lighting tab (if the directionality submenu is missing) without performing the reset to reengage the menu appears to drop the light-directionality settings for that token on the map until the above reset is performed. Sometimes.
Further note: changing values in the UDL page without resetting the expandable menus while they are missing appears to cause the aforementioned settings drop on the map.