roulette bonus progress only moved when i lost on inside numbers

Has anyone had this happen? I was going for a bonus clear on roulette and tried some straight-up inside bets for a few spins. Whenever I hit the number and won, the bonus progress didn’t move at all. But when I lost my bet, suddenly it ticked up. I swear every time I lost on inside numbers, the bonus progress bar jumped, but whenever I actually hit a win, it stayed right where it was. I tried mixing in splits and corners, and it looked the same.

This can't just be me, right? I always thought the progress was supposed to count all wagers, not just losses. The rules weren't super clear about it either, and I’ve never noticed this playing blackjack or other games. Has anyone figured out how these sites calculate bonus progress for roulette? Is it losses only, or am I missing some weird rule about inside bets?