Hello,
Mostly sure this has already been said somewhere in the last monthes but I don't remember... I'm also not 100% sure that this hasn't been fixed yet but I don't think so. Correct me if I'm wrong.
The spell "Dancing light" is mostly useless in BG3, especially because we cannot move the lights during the next turns.
I used it a few times at the beginning of the EA but ennemies are moving while the lights are not. After a turn the lights are often in a position that's not usefull anymore and you have to cast it again, spending another action.
There's mostly not point at casting dancing light as currently implemented because it require a full action too many times to be really usefull. The spell light seems to always be a better choice.
In my opinion we should be able to move the lights at every turn using our bonus action (or we should be able to "recast it" on another position but it would looks less cool than moving lights).
It would be even better if we were able to move the 4 lights independently of each other in exemple to light 4 parts of the area.
It would also be very cool if we were able to create "groups" of lights.
4 lights as a single light = dim light in a 12 meters radius.
3 lights as a single familiar = dim light in a 9m radius.
2 lights = 6m radius
1 light = 3m radius
This would add a lot of possibilities to play with the light / shadow mechanic.
We could choose to create : 2 different spots with 2 lights or 1 with 1 light + 1 with 3 light, 1 big spot with 4 lights or 4 different spots with 1.
I'm not sure it would be possible but I think it could be very interresting. Of course the radius are given as exemple.
While the idea is good it would be probably better to stick with the original dnd design.
The main reason Dancing Light feels garbage at the moment is because you don't need it: the Underdark is way too bright since patch 8 (not in line with dnd) and the disadvantage from shooting at "obscured" target is more than compensated by the constant advantage you get from simply holding the higher ground (not in line with dnd).
Dancing light isn't broken, the rest is.