I'm just confused about their square burgers.

But back on topic, I've actually had something similar happen to me- in Japan of all places. I was shopping at a Daiso and tried to use my chipped UnionPay debit card. The lady tried to stick it in the slot on the PIN pad, but it kept bouncing it back out. Swiping it worked, but it took a while for her to think of trying that.

Oddly enough, the same seems to be the case with ATMs. No Application ID shows up on my ATM withdrawal receipts- not from Mizuho, not from Aeon, not from Citi, not a one.