I was playing with my friend on Tuesday. We just finished landing and started looting, but the game abruptly crashed, showed an error message and had to be force shut by both of us. An update might have been a reason, because we had to download it right after.
We logged back in and found out the event had started. New weekly challenges were given about two hours early, though they were closed during following match without progress. The event also started.
The bugs affected us differently. Here are mine:
The daily challenges were reset two hours early. When I started to do the new ones, they themselves would work normally, but they wouldn't progress the weekly "Complete 5 / 10 daily challenges" challenges, or if they did, they were reset back to 0 after a game. Now the daily challenges are due to reset after 4 days.
The Treasure hunt challenges did not reset for me, so now I'm stuck with that progress also.
The treasure pack is showing additional hours. It started from around 120 hours and is currently at 94 hours.
My friend's bugs:
The daily and the event challenges will not reset. Other things listed before work correctly.
Hopefully you can find a fix soon. Though slowing the progress for the time being, at least it does not prevent playing.