Heavy artillery gun causes a crash when placed down

I am using the newest version of Hbm Ntm extended edition.

I am running optifine in my modpack.

Dude seriously at least include a crash report

This is, in case you have not noticed, the 1.7.10 GitHub page. And you didn't even include a crash log, so even if Alcater saw it, he wouldn't even be able to do anything.

That's the 1.7 github, we physically cannot help you, go to alcater's

seriously bob should add a '1.7.10 ONLY' under 'Describe the bug' in the template

Report it to Extended Edition instead