Using LP 179, I name a crafting card inside an anvil. I then try to place the card in a MKV pipe chassis, which causes the client to crash with a "java.lang.IllegalArgumentException: Invalid null NBT value with key RepairCost" error:

crash-2019-06-28_13.48.14-client.txt

Server remains running, and upon logging in the named crafting card is still in my inventory.

I have never tried naming anything from LP in an anvil 😆 Good catch, I guess

May be related to #1072

Yeah I was hoping to have an "at a glance" way of identifying cards without having to click all the ! buttons to see what's on them.

Was not to be, at least not on this version :D