Engine dies idling from cold start

hey so ive have noticed recently that when starting from cold if i let the rzr idle to warm up it typically dies. i noticed today it died at 122 fahrenheit. Gas hasnt been added to it in a few weeks so maybe its just ethanol. ive always grabbed 91 at the pump for it.

happened maybe twice before and i believe i had filled once between outings. maybe 1 month since last fill up.
Happened friday night when i started it to make sure the battery was charged. gas was at 3/4 full
no issues saturday but no time to idle. was having fun
happened today (sunday) sitting on trailer still 1/3 of a tank

is there a inline fuel filter anywhere before i fill up the tank?