slot jackpot meter reset right after i hit mini prize, not sure if normal

so i was spinning on this slot with one of those jackpot meters across the top, you know the ones that tease you with mini, minor, major, grand, whatever. i hit the mini prize - barely, like i almost missed it - and right after, the whole meter snapped down to zero, including the other jackpots. i always thought only the tier you hit resets, so not sure if this is just some weird game thing or maybe a glitch.

not gonna lie, i stared at my screen so hard my sandwich got cold. didn’t wanna hit refresh in case it was a dream, haha. does this happen to anyone else or am i just cursed to be the jackpot resetter?