As many, if not most, people know, Doppelsoeldner’s Double Pay Earn does not double your exp. It is roughly a 30% boost. This either needs to be fixed in the skill description, and be a fairly bad skill, or the exp boost needs to work.
I haven’t seen any confirmation on the drop rate rates working incorrectly, but it should be looked into as well if possible.
I am well aware that there are probably other threads about this as well, but I would just like to bring some more attention to it, especially from IMC, and potentially warn any new players who weren’t aware of this.

