The dynamic groups system is bugged when I put it in my scenario.

I followed the official instructions and used the following lines:
["Initialize", [true]] call BIS_fnc_dynamicGroups;
["InitializePlayer", [player, true]] call BIS_fnc_dynamicGroups;

Here's how the UI is bugged: https://www.youtube.com/watch?v=s20sn3FZJLo&feature=youtu.be