when i have a combination of ic2 and tinkers or ic2 and forestry minecraft will freeze on the mojang screen. no crash report is given and if i go into the client log and forge log there isn't anything pertaining to my issue. some unknown texture files but thats about it and those issues are solely the mods in question. i can't think of any reason there would be an issue especially because i have seen other people running all 3 mods at once with no issue.
EDIT:to clarify i only have an issue when i add ic2 with tinkers running or ic2 with forestry running. also if anyone is willing to help tinkers and forestry also gives the same freeze on mojang screen. when i have ic2 or tinkers or forestry on their own it runs fine. when i combine two of the given mods i run into the issue.