https://deckbox.org/sets/839751
Here is the deck in question. It only started to show Vintage a couple days ago.

Clicked on each card, and they all seem to be modern legal. I made a copy of it and it came up as a modern deck, so maybe use the tools to make a copy and delete the original?

http://deckbox.org/sets/855551

gumgodMTG wrote:Clicked on each card, and they all seem to be modern legal. I made a copy of it and it came up as a modern deck, so maybe use the tools to make a copy and delete the original?

http://deckbox.org/sets/855551

I went ahead and did that. Seems to be okay for now.