#1 would have different items and pixelmon to #2 and would occasionally crash out or disconnect. #2 never really connected and may CTD if he tried swapping pixelmon.
The version we used was 4.2.7 with the latest forge for that version. I also have a few of the official side mods installed (wondertrade, trainer commands) and I've also installed schematica and the dependencies. I'm also using the pixpack Optifine. My friend has the exact same but a different optifine version (I'm using HD he's using low).
Assistance would be greatly appricated!