Hi Dean, we’re pretty close to being neighbours, I’m in Murwillumbah. The beta that installed on my phone yesterday (11.2.5 beta 2) seems to have fixed the issue on my iPhone for me. However, I was premature in calling it fixed on my Watch. I spent most of the day yesterday in town, away from my phone, and my watch was obviously getting its signal from a tower in NSW. Now that I’m back home (on the very edge of town) my Watch is again reverting to Queensland time (I have direct line of sight to Springbrook Plateau) when it unpairs from my phone.
Out of interest, which provider are you with? I have only noticed the problem since switching from Telstra to Optus a week ago (just pointing out that with Telstra my phone was getting a signal from a tower in NSW and now with Optus it’s getting its signal from Qld).
I’m actually sitting here waiting for Apple Support to call me back after my Chat yesterday was left unresolved (the support guy was going to speak to his supervisor and get back to me).