Hi, I am recently playing Inclement Emerald on the latest version in Challenging Mode with a friend and we encountered two strange things:
1) Wattson doesn't know how to play around Lightning Rod Seaking, he just switches out continuously if Rotom-Mow has fainted, making the fight a complete joke.
2) Me and my friend decided to play Mega-Rayquaza (swag) for the League, we teached Dragon Ascent to it but when we mega-evolved it Delta Stream doesn't activate. He took damage from the sandstorm set by our Hippowdon and even switching him in after mega-evolving does not activate it.
Overall we are really liking the Hack, the best thing are surely the new areas that are seamlessly connected to the old ones, they give the Region so much more charm and I didn't think that it could've been possible. The only things we are not liking very much are the slow grinding, the level cap management (the caps are too high and too far from one-another, maybe some fights can be used as flags, like with Aqua/Magma admins or leaders, lower caps mean more pokémon you can level up and more teams can be used, which is the most fun you can get from hacks, I think.) and also even in challenging mode the Gyms were too easy, the Aqua/Magma leaders and Frontier Brains were harder and really fun, we suggest a difficulty level more like them.
I hope this helps to improve this amazing hack even more!