By using the number keys while hovering over an item in the crafting table in the WCT, it is possible to swap the item in the crafting grid with the WCT itself, causing an immediate server crash. Fortunately, the server reboots with no problems.

What version of the mod are you using? This sounds like an issue I had a while back, but got fixed. #115

Huh. Apparently 0.0.17 isn't latest; news to me. I'll update tomorrow. Thanks!

thx @redcatone ..going through a lot of stuff IRL and when I saw this I just closed chrome since I was pretty sure I had already tackled this