forge support released yesterday so i guessed it would work now, but its just stuck at the minecraft loading screen near the end.
its like this forever.
Dracconis commented
Need the error log please so we can see what is going on.
kevin930321 commented
Same issue, I'll have to remove all the resource pack files in the folder to get in, then I put the resource packs back in, and they worked fine as usual, I don't think is because they're not compatible.