Well hi there, Ill cut to the chance
Ive been playing 1.8.9 with mods for a pretty long time, sadly some servers need you to be 1.12 and up. I got my versions all set up so I can run 1.8.9 forge and 1.12.2 forge both modded. I got this done no issues and started running optfine for 1.12.2. It worked perfectly. I try different mods and none will run on my 1.12.2. Take in mind 1.8.9 is still working perfectly. Im not too sure what im doing wrong because i looked through the mods and folder several times.
I dont think this is a forge issue and im hoping its just an easy fix i can do on my side. But currently im clueless.