Was able to complete first daily and I didn't have the horribly loud sounds at the beginning of the game - or at any point during it.
NVM, just got the loud sound at the end of a turn when a shrine converted to my side (terraforming prob maybe?)
Yep, deffo a ground transformation problem. It happens at the beginning of the game because the ground around the shrines transforms and when units/shrines cause the ground to change too (usually beginning/end of turns).