if you arent finding flowers its because whenever a new server pops up and you or someone else collects them they somehow dont respawn so i recommend joining a private server so its a 100% chance of getting flowers
Cant grind flowers in a public server since its only once in a server life time they dont respawn so you need a PS(poor for one i begged for this game lol)
i got 8 zaza flowers and 6 jade pieces in my private server and it took like 10 minutes and before that i stayed like an hour getting zaza flowers and i got only 6 with 2 pieces of jade☠
I do not think this is patched, try going into a vip server and reseting it after each time you leave. Flowers may take some time to load into the cave aswell