Hmm, weird. It could be because of updates, since I haven't played for a week. I'll test it shortly and get back to you

This modpack doesn't work for me. It keeps resetting the mods and has a really glitchy behavior until I restart a second time with nothing but core loaded. I have tried a full reinstall of the game and when that didn't work, deleting all the app data files and trying again still didn't fix it.