Look i have same problem, and i do that, i now playing on 1040 MP without ENB and moded handling, just moded vehicles.img and it's fine! FPS and moods, now, if you want to make movie with enb in MP, record with F2 in MP (clip capture must be ON) and quit game, install enb, filecheckfix, asi loader and run game, go to video editor, and you will have enb on multiplayer movie