(Update: I haven't seen this happen for weeks now. Maybe the site is more stable?)

I sometimes get a loop lasting up to 5 minutes when things just seem to reset to a particular point in time less than a minute earlier, no matter what I do. It seems to happen in the first few minutes of each hour. I don't know if it has to do with caching problems, database transactions getting tied up in a queue, or something else like a data replication problem.

For example:

1. In a battle after the second turn, instead of progressing to the third, it gets reset to the first turn multiple times. The once per battle weapons and progress makes it apparent.

2. In a quest, after buying items and pressing complete they said I don't have the items. My inventory is empty (with no items or prizes), but then after 5 minutes the quest is automatically completed with my prize. Any items I rebought just becomes redundant in my inventory.

3. When I use boosters, there is also up to a 5 minute delay before the stat changes actually take effect. I forgot to add, I still see those boosters in my inventory and then they disappear by that time.

It's no longer persisting. I haven't encountered it since May.