Top = old
Bellow = new
As you can see my group names have spaces, but when i imported, it removed the spaces.
Import string : group:MoP`Ethereal Shard,74247,group:MoP`Mysterious Essence,74250,group:MoP`Sha Crystals,74248,87641,87650,90717,90718,90719,90720,90721,90722,90723,90724,90725,group:MoP`Spirit Dust,74249
I know that i can't have both groups have the same items, i just wanted to take a look at it to re-create and have a better grouping in the first place but there shouldn't be a issue with sub group names?