I get this crash when joining my server, if my character was left in the vicinity of my base where I built a simple device with a couple logic gates and some PR wires. If I delete the playerdata file for my character and then rejoin at worldspawn, everything remains fine until I get close to my base again.

Here's the crash report: http://termbin.com/9qwc

Is this PR's fault, or is this something I should ask CodeChicken about?

Edit: I should point out that the coordinates of the affected block seem to change each time I crash. It's almost always referring to a block that a piece of insulated wire is running through.

Maybe fixed with 1858e98