Expected Behavior

Opening the game exe and showing the loading screen

Actual Behavior

The exe doesn't even open and I have to go into task manager to close the launcher.

Steps to Reproduce

Install Optifine manually and launch the mod.

Version of Minecraft, Bewitchment, Forge, Patchouli, LLibrary and Baubles used

1.12.2, all, all, up to date, up to date, up to date.

Screenshots encouraged

Logs, in the event of a crash

No logs, but the game launched only after I uninstalled optifine.

If this is a question, developer commentary, or a suggestion, ignore this template

Due to Optifine's nature, I really can't do anything about this. Try FoamFix and BetterFPS.

I had this issue before. The problem was about invalid image files in the splash.properties. Make sure to check that also.