Neighbours bet paid wrong?

so this happened at a local place, not online. i saw someone put a neighbours bet on 17 with 5 numbers covered, chips stacked like usual. spin lands on 2, so payout should be pretty obvious, but the dealer paid out for only one chip, not the full spread. player didn't notice, just took it and walked.

now i’m wondering, is this kind of payout mistake common? was i missing something in the chip placements or is it just a straight-up dealer error? i’ve seen crowded tables get a bit chaotic but rarely see actual mis-payouts on simple neighbour bets. feels off. made me watch my own bets a lot closer that night. anybody else had weirdness like this at brick and mortar tables?