I crashed twice trying to insert an item (the item storage cable from Storage Network) into my system through the GUI of the item request table. Unfortunately I cannot reproduce this in a test environment. It worked both times after restarting the game and doing the exact same thing. My Storage Network is connected to a controller from Storage Drawers and a few Modular Storage blocks from RFTools. I also used a shift + left click to do it, if that helps.

http://pastebin.com/GMUJJyGw

try the latest version and tell me if the crash still occurs

I played with the newest versions of the mods for an entire day and didn't find any issues, so as far as I'm concerned, this issue is fixed. Thanks. Keep up the good work!

Unfortunately, I just got this client crash, just now. Logs: http://pastebin.com/3Rtr85di

This is with StorageNetwork-1.9.4-1.11.2.jar, and forge-1.9.4-12.17.0.1957-universal.jar.

do you play on a server?

Yep, on my own server running on the same system, for testing and development.

Should work in the next version