Welp, just encountered the first serious bug. For some reason, the game suddenly corrupted the save on all three of my test devices, as well as my cloud save. Hours of progress has been lost and I have to start back from the beginning.
The really weird thing was, I wasn't syncing saves between the devices. All of them were at different progress points so it's not like the cloud save corrupted and I accidentally downloaded and overwrote my progress with the corrupted save on all three devices.
It's just so weird, all three device saves got nuked at exactly the same time.