This happens on a build made up to commit 38c1339e3638d435e9f52ebe9b18bf39e471c06a. Forge version is 2260. Using HWYLA 1.8.10-B23.

Steps to reproduce:

• Place any type of wire.
• Place a wire on it (any color, doesn't appear to affect the outcome)
• Break the pipe or the wire with a left click, either in survival or creative.

Now, if you break it in creative mode it simply crashes the game, and once back the wire/pìpe+wire is gone. If you do it in survival, though, you do recover the wire item (and the pipe, if you broke it as well).

Crash report

Video of the crash

Please try this commit from my branch: afdw@da911b1

Seems to stop crashing after applying that commit! 😄

By the way, @afdw while trying to build from your fork (since it seems to be more active than the main one, and I didn't notice). I noticed you seem to have marked it to use the Buildcraft-API submodule from Buildcraft instead of your own, which breaks the submodule updating (and therefore, compiling).

You may wanna update that so it uses yours by default 😛

@starg09 I don't want to do it because one day I'll send PR, and changing .gitmodules can cause problems. Maybe it should be added to .gitignore.
And yes, my fork contains all commits form main repo.

is this still an issue?

No, as it's fixed.