Are you playing singleplayer or multiplayer? Is it all structures included in the mod or just certain ones?

Move Closer to where u are putting it and then place it, i exprienced the same thing. Should help, did for me atleasT :D

this is happening on our server as also, we are running aku shima mod as well, all items are craftable and we can learn engrams but when we plop they just bouce back to inventory. mp pvp server.

Its mp dedicated unofficial. Distance isnt the issue having same problem as Track. Tried rebuilding some foundations no dice. It is all structures in this mod. Also running aku shima as well no issues with craftables from the other mods at this point.

Jaglet have you found any sollution for this yet?

I've found changing my mod stacking order fixed this.

Thanks Vash i'll try that

so its a stacking issue then, a few people on my server was having this issue last night but not all of us