iTzAndreCoD

I fixed it by uninstalling minecraft then pressing ‘Windows button+R’ wrote ‘%appdata%’ and deleted the .minecraft folder and didn’t backup anything because when i backed up texture-packs it didn’t fix it then i installed forge 1.12.2 (14.23.5.2768) without running 1.12.2 first and it fixed it. hope that this helped you. (will edit and tell you if it works for other versions too)