When a user in our server placed a pattern inscriber between the 64k storage blocks of two AE2 crafting CPU pillars (http://i.imgur.com/qP7scoC.png), the server crashed with the following error:

http://www.hastebin.com/arojuhicog.avrasm

I'm unsure if the error is indeed due to ae2stuff but it shows up in the stack trace a few times.

By the way - What version of both AE2 and AE2 Stuff?

Ah yes, sorry about that.
MC 1.7.10
Forge 1492
AE2 rv2-stable-10
ae2stuff-0.5.0.56

Latest of both mods, rather old Forge because of some incompatibilities with mods

Doesn't look like an error on my side. It shows up in the log because it tried to join the AE2 network, and something broke in AE2.

Does it crash if you try to place it there again or was it a once-off thing?

Now that's speedy service!
The crash happened twice but I told the guy to steer clear of the block space it happened in, lol
It hasn't happened since.
I'll try to reproduce it and see, but we're having terrible luck with our server crashing today so I'll get back to you in a few years when Gregtech loads

Edit: Yep, it happened again by doing the same thing. I have no idea

Edit2: It doesn't happen with any other AE2 machine, or any others from your mod, just your pattern encoder

Edit3: Apparently if you break the encoder, it also destroys the pattern contents? I dunno, just something someone mentioned

I've played with it a bit and couldn't reproduce the error. Is there anything else special going on around there with network topology?

Could you try disconnecting the pillars from the network, placing the pattern encoder and then (if it hasn't crashed by then) reconnecting?

Edit2: It doesn't happen with any other AE2 machine, or any others from your mod, just your pattern encoder

That's really odd. I don't think the pattern encoder is doing anything differently than the other blocks in the mod.

Edit3: Apparently if you break the encoder, it also destroys the pattern contents? I dunno, just something someone mentioned

It should store whatever was inside in the block when broken, and still be there when placed back.

I have no idea. The guy's base is frankly a mess so it's possible, but the AE system looks like a run of the mills late-game system.

It hasn't happened since, but next time I'm around the server I'll try that.

Edit: I can't try it because he has that security terminal thing, and apparently ops can't even open it. Must be a config but eh. I'll try it next time he's on

Ok i'm closing it for now. If you get more information or it happens again comment here or open a new issue.

Haven't come across the issue since. Thanks for your replies!