Hello!
I am using
forestry_1.12.2-5.8.2.383.jar on forge-1.12.2-14.23.5.2814-universal.jar

When I try soldering 3 bronze and one golden tubes to an intricate circuit board, it first seems to work alright. The tubes disappear and the board goes to the output slot of the UI. When I hover the mouse over the board, it seems to be OK, the tubes are shown as soldered. But as soon as I try taking the board out, the tubes appear in my inventory again and the empty bord goes back to the input slot.

I alsoi tried putting the tubes first and then the circuit board, but this wouldn'T work, too. Most times the same as above happens, but sometimes it even gives a wring board (with 4 times efficiency).

PS: The above is what happened with Inventory Tweaks. I now disabled Inventory Tweaks, and the behaviours changed:
It won't let me place bronze tubes on the slots at all. The other tube types are working.

PPS:
OK, I now got it: Inventory Tweaks also needed to be disabled on the server. Then it worked.
The installed version of IT is; InventoryTweaks-1.63.jar

Would be great if this could be fixed- Thank you!