So I used to play modded minecraft on 1.6.4 all the time, and switched to 1.7.10 to play a number of mods that had special things released specifically for that version, and now when I go back to 1.6.4 and use the same forge I've been using for 1.6.4, the client (after clicking play) will complete the loading bar, disappear, and then the actual game client won't load, Minecraft will just have closed itself. It gives no error report, I've tried loading it up with no mods in it, and nothing seems to work.
As the Superheroes Unlimited mod doesn't have a higher version availability, I wanted to play 1.6.4 and get to use it again, but I don't know how to fix this issue.
As the Superheroes Unlimited mod doesn't have a higher version availability, I wanted to play 1.6.4 and get to use it again, but I don't know how to fix this issue.