Board Thread:LotR Mod Technical Support/@comment-82.38.104.204-20170101194303/@comment-27219153-20170101201902

Perhaps it is something to do with another key being set to L as well? Look through your controls and make sure nothing else is set to L.

If that's not the issue, please remove your other mods, so that you only have LOTR and forge running just to make sure that it is not a problem with one of them.