Im hosting GTL inside AUM and notice that the leftmost group - group 1 is obscured or lightly covered by the IAA button panel ( the one with the AUM symbol and IAA transport icons ).
This only happens though after one has recorded something in group 2 and group 2 is active. It i at this point that group 1 is slightly obscure by the IAA panel.
If one has only recorded loops in group 1 you won't notice this.
It makes reselecting and launching group 1 loops hard because its play button is obscured by the sigma (AUM) icon.