My wife and I play together most evenings and just encountered the same problem. Between work and kids we only have an hour or 2 or 3 in the evening to play.
Last night we beat the shores of plenty battle but because we play around the same time every day, we can’t do any other battles. Pretty bummed about this at the moment.
We tried loading into over 6 different games and each server had the same game date time. So apparently all the servers have the same date time.
Rare, please just make each server have a different date time.