Board Thread:Bug Reports/@comment-29723156-20160828115556/@comment-25101690-20160828212151

The same goes for the illegal extra prefix. It existed since the first version. I told Mevans about it a few months ago and he didn't know it before but it would be too much to change all the IDs (this would for example also delete all mod items from current saves when loaded in a new mod update  with the IDs fixed).

The System.exit warning looks like it is caused by something else, not this mod.