Board Thread:LotR Mod Technical Support/@comment-75.136.40.112-20170201030940/@comment-25330335-20170201034629

If you have backed up, follow the instructions below. If you haven't backed up, back up and then follow the instructions below.

It's not quite that simple. My guess is that your UUID changed somehow, so your old playerdata isn't being loaded for your player. What you need to do is rename the old file with the name of the new file. So:

Old_UUID_Playerdata_File > New_UUID_Playerdata_File

Then try loading up lotr with that and see what happens.

As for MultiMC, if you've read some stuff on the website, it allows you to create instances, that have their own saves, settings, and forge, but use the same minecraft jars so that the launcher takes up as little space as possible. If you play multiple sets of mods, or just want to organize your worlds better, run MultiMC and use the new instance button to create a new instance. You can then add forge via MultiMC's gui, add your worlds, and mess with other instance-specific settings with the buttons on the right. All in all, works quite well.