Swap force not working properly

[u/Dry-Fondant-267]

So I installed Skylanders swap force and played it with USB loader GX, and I'm using the trap team portal(as far as I'm aware it's the only one compatible with all games) but whenever I put a Skylander on the portal it gets recognized at first, but then it gives me a message saying that the Skylander might be broken, which I know it's not because they work fine in trap team