When you select two tokens and at least one of them is emitting light, the center point of the light moves to another point on the map. They don't have to be Grouped, only selected together, but the problem persists when tokens are grouped. Two tokens before grouping/selecting together Light source moves when both tokens are selected (Note: Same effect occurs even when the tokens are not stacked but still selected together) Light returns to its proper point when tokens are unselected, but it makes exploration a bit more troublesome because the players have to unselect to see where they are. As there are work-arounds (not using separate light tokens) this is a low priority bug.
