Multiplayer - custom ships glitches

[vonfrank]

I have followed the instructions on a previous post in this forum to figure out how to add a ship into multiplayer, and it works. My PC and Laptop both have the same game version with the same ships added to multiplayer and if played individualy, they both work fine.
However if my PC hosts a game and the Laptop joins, the Laptop gets an error and the game exits if the host adds my custom ships. The PC keeps on going with the custom ships but the laptop cannot re join unless there are no custom ships left in the battle.
This happens in reverse too. If the Laptop is hosting, the PC will get kicked when custom ships are added.

Any help here 

[vgdude999]

Are both installs COMPLETELY the same?

[vonfrank]

COMPLETELY

i literally copied and pasted the entire install into the laptop

[vgdude999]

 :arms: I don't have any idea then.