Board Thread:LotR Mod Technical Support/@comment-75.136.40.112-20170201030940/@comment-25330335-20170201032305

Before you do anything else, back up your world. That may prevent you doing any inadvertent damage to all your important stuff. Id first try checking in your world file, under player, or however those files go (I haven't dug through a world file in ages...). There should be files inside of the player folder that are named as UUID's long strings of numbers and letters. How many of those files are there? Hope and pray that there are two.

If you'd like to get away from the tyranny of corporations forcing software updates upon you that break things, try out MultiMC. It's an open-source third-party launcher that allows you to do many more things than the vanilla launcher. I recommend it.