Xycraft Tank resetting?

[Adonis0]

I'm posting because i am having a problem with two of my four xycraft tanks, and it's frustrating losing so much oil and fuel because of it.

Everytime I come onto the server, these two tanks have reset themselves i.e. no longer classed as a multiblock structure, upon reforming them by right-clicking the valve (so no blocks have been removed or changed), they're empty.

I have another two tanks with identical set-ups, just rotated 90 degrees around my base, and they're doing absolutely fine.

I have a 12x12x12, across two chunks
and then there's a 12x5x12 across two seperate chunks.

I can't think of what would be the problem that's causing an entire erasure of valve data..

 

[Hoff]

If the valves are on the chunk boundary it could cause a problem. Also if you are lightning by Wrath lamp it could cause problems.

 

[Adonis0]

If the valves are on the chunk boundary it could cause a problem. Also if you are lightning by Wrath lamp it could cause problems.

Well.. that explains one of them
One tank is on a chunk boundary, but the other is not. It's about 5 blocks in the edge, and I haven't touched wrath lamps because of how many times i've seen them associated with problems

EDIT: but the other tanks that I've got are actually an identical set-up, so there's another one with the valves on the chunk border, which is behaving quite nicely..
>.>

And all the chunks that they're all in are chunk loaded constantly

 

[BananaSplit2]

chunkloading can be very weird sometimes.

 

[Adonis0]

chunkloading can be very weird sometimes.

mm, but i thought when they went wrong, there were chunk resets, not just resetting the information on a xycraft valve.

Plus all four are loaded by the same chunk loader, not just those two by one..

Thus overall i'm very confused, because I've got tanks set-up the same, including the position in the chunks that they're in, and they work, and just these two on one side choose not to.

The ones that are working are in a jungle biome, and the ones that are refusing to stay assembled are in a mountanous desert biome, if that would affect anything.