Hey, I just signed up to the forums to get some support, When I started the modpack, I noticed that the game suddenly changed back to Vanilla Minecraft. Upon inspection to the installed mods, they were all gone, I tried to re-download the launcher, but the mods were still gone. I think I will need help, because I can't manually re-install every mod in the mod pack.
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This might have happened because all of the launcher updates after one another. I updated to the recent version and the mods in the mod-pack deleted themselves.