Like the title implies, the pre-punched card vanishes after deployment. 
First time I encountered the problem I was playing with one other person and when he tried to deploy my pre-punched card on the balcony of John's house it just went missing, and neither of us could find it. I figured it was a one-off vanishing-into-the-void moment and didn't think too much of it. (Don't have the save file for this since we couldn't figure out how to progress, we didn't bother saving.) 
Second time it was the same deal, a two-player session with the same person. This time, his PPC went missing after I tried to deploy it on a balcony of his house. (I think he customised aspects of Boondollar Mansion, I'm not too sure what house he used.) Eventually I found the PPC on the far edge of the map, and tried to drag it over to his balcony, but it kept clipping through the floor. I eventually just resigned to dumping it on the ground floor but it clipped again and ended up under the floor of the house. I managed to retrieve it again but didn't bother trying to put it on any surface other than the grass outside his house.
I was the host the first time, and I was also the one to initiate SBURB first. Second time, my co-player was the host and was the first to initiate SBURB. I'm not sure if either hosting or game order matters but I figured I'd include it anyways. 
I apologise in advance if this is a known issue I somehow missed or if a report has already been filed for this bug. I also don't have any screenshots, nor any save files either, so I'm very sorry.

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Player log:


Originally reported by h_herrscher#1919 (h_herrscher)

Internal issue ID: 165