I was having a weird experience with the store just now so I figured I'd report it. I filled my cart and went to check out. I got an overlay where I was able to enter billing and payment info (no paypal option there sadly) then when I went to submit/continue from there, overlay closed and I was navigated to what appears to be the older version of the checkout page instead of any sort of success page, with a paypal button, shipping/billing info blank, and a full cart still.
I almost re-entered all my info and paid again, but I saw I got a confirmation email. Order number 19077 if you want to verify. But a really odd experience where I almost doubled my order.
Edit: Also it looks like the Vintage master selector up top did not appear for me until after I did all the pop up stuff, Thought I had to put my vintage master in the note box until I see the selector bar in my weird state now. I hope the note box works, sorry to cause y'all more trouble