Only a zero byte file is created with the exception of itempanel.csv.

File used is: NotEnoughItems-1.10.2-2.1.2.157-universal

I'm having problems with data dumps too. Attempting to dump all blocks gives me a 0 byte file like DadYoshi mentioned. Attempting to dump the item panel sometimes works, sometimes doesn't. If I search the item panel via something like.. $ore, then try to dump it, it will dump all items and blocks in the game instead. It seems that some things I search will properly dump, while other things, it'll just dump everything or nothing. I can't seem to find a pattern, unless there's an item or block that's bugging out the dump code.

This was fixed.