Hi. I received my 4 factors 1 week ago and I am still trying to figure them out. I updated all of them to latest version but I am new to midi and still having prob to sync them all. I followed the instructional videos step by step to sync them all and got only the first 2 on sync, but now I cant sync any of them when I tried to sync them all. Dont know whats wrong. Im pretty sure I followed the steps as directed. I also restored to factory settings and did the same process a few times but nothing. Please help, this midi thing is giving me a headache.