When I made a quantum bridge card, I put it in my terminal, constructed a quantum link, I put a singularity in my terminal and in the quantum link, and the next time I opened up my terminal, my singularity was gone, this happened twice and relogging did not help. Furthermore, I can remove the quantum link card from my wireless terminal, close the terminal, and open it and it has magically reappeared, these duped cards persist after a relog and are, as far as I can tell, real as can be.

I am playing with the All of Fabric 7 modpack and am using a wireless crafting terminal. I also have several added mods on top of All of Fabric 7:

• AE2Things
• C2ME
• ServerCore
• ItemClearLag
• Mobtimizations

this happens if the terminal is in a trinket slot and the screen looses the reference to the stack that is in the trinket slot (this can happen e.g. with some wireless chargers).
It would be fixable, but it is pretty annoying to do so, and only relevant on 1.20.1 (and older).

It doesn't happen when the terminal is not in a trinket slot, so you can take it out of the trinket slot, put in the singularity and put it back in.

ah, I see, thanks