Seems like zhuhai structure check is not really a good one. It checks for hatches, buses from other multiblocks, and can lead to very strange but working contraptions

Makes sense. The structure when I attempted to make it wouldn't recognise a Maintenance Hatch for me on the opposite side of the structure to the controller.

ah cool, so we can put this in the open without worrying about exploding from rain? :)

As in the referenced issue #361, I'm still trying to form the fishing pond. Trying with GT++ V1.7.02.09 and GT++ 1.7.03.05-GTNH still gave an incomplete structure.

However I've just downloaded a previous version (GT++ v1.7.1) and, on the same save used before, the multiblock correctly formed upon logging into the world.

triying to build the fishingpond on GTHN Epsilon server V.2.0.5.1
it is not validating structure, i tried adding a muffler becous it says it produces pollution but no luck. I am building in a north/south direction, all busses and hatches are MV eccept muffler that is EV

tried with al HV to, no luck

Is there any news on this? We have some players resorting to 1000's of single block gt++ fish catchers now :( the fishing pond is surely a better option that that