Drone duplication and problem placing

I've tried placing my drone and drone hub everywhere but its impossible. I've tried on big open foundations with a TC and also in grass. But keep getting errors.

There is also a duplication glitch, where players could place their drone then get 100s of them then recycle them for scrap or have tons of extra IQDrones breaking the economy and gameplay. How do I fix this?

This bug happens just be placing a drone down then it will be duplicated in your inventory.

The hub can only be placed on the roof.
If you have a duplicate drone in your inventory, this may be due to plugins on the stack or any other plugins, usually when this happens in the RCON server console you can see a notification about the conflict that occurred

However, try to test it on an empty server, there will be no such problem.
If you find a plugin with which there is a conflict, let me know, I will try to help you