Incomplete deck?

[Helltech]

I made a Round deck, that is complete but for some reason there is an exclamation on it that says "This deck is incomplete". It shows that the deck doesn't meet "standard or unlimited requirements", however when you click the deck validation button it shows that it should be fine. I'm very confused. Help?

 

[efyoo2]

This happened to me when I cloned a theme deck and edited it.

 

[SolarPichu]

This just happened to me when I removed one Eevee and added a different one I received from a trade. =/

I was able to remove the new Eevee and use a different one, and then the deck became complete again. The weird thing is that the Eevee I originally added became the third copy of that specific one, so maybe there are counterfeit cards floating around PTCGO?

 

[Raen]

This happened to me as well. I just exited the program and reloaded it and it fixed it.