Hi!

I found a crash while making some redstone stuff and sadly I can't remember the exact setup, but I know it happened the exact moment I placed a solid block were there earlier had been a wire. (The standard type, not isolated.) And redstone dust was next to it.

I was trying to reproduce the error and I could crash the gamewhen placing redstone dust[d] and the wire[w] on the same y level, and then broke the block below one the redstone dusts, like this:

[d][d]
[w][w]

Crashlog

Fix slated for 0.5.4.4.

Thank you, that was quick :)