I have a duplication glitch.
The first time I experienced it was on an Advanced Navigator Spacesuit. I placed it on the mannequin and had Jason install a Galvanized mod onto it. I received the modded spacesuit but there is still a standard version of the Navigator spacesuit still on the mannequin. Jason doesn't see it on the mannequin unless you take it off and put it back on.
Then I found that the duplication glitch must be on the mannequin. Using an Advanced Navigator, Advanced Pirate Assault and a Superior Ecliptic Spacesuit, if you take any one of these and place it on the mannequin, exit the mannequins menu, then reenter the mannequin, you'll see that is is a standard version, then exit and reenter again, you'll see there are now 2 of them. You can exit and reenter as many times as you want and it will always add another.
I tried with an Advanced UC Vanguard suit and a Superior Explorer, but it does not work. Also unlike the other suits, it does show as an Advanced/Superior suit while on the mannequin.
The first time I experienced it was on an Advanced Navigator Spacesuit. I placed it on the mannequin and had Jason install a Galvanized mod onto it. I received the modded spacesuit but there is still a standard version of the Navigator spacesuit still on the mannequin. Jason doesn't see it on the mannequin unless you take it off and put it back on.
Then I found that the duplication glitch must be on the mannequin. Using an Advanced Navigator, Advanced Pirate Assault and a Superior Ecliptic Spacesuit, if you take any one of these and place it on the mannequin, exit the mannequins menu, then reenter the mannequin, you'll see that is is a standard version, then exit and reenter again, you'll see there are now 2 of them. You can exit and reenter as many times as you want and it will always add another.
I tried with an Advanced UC Vanguard suit and a Superior Explorer, but it does not work. Also unlike the other suits, it does show as an Advanced/Superior suit while on the mannequin.