Apple iPhone 8 Plus Companion Crashing

Been using Zwift for the last month and pairing it with my apple phone and watch. However, every ride I do, the companion app crashes every 30 min mark and will not for work for 2-3 min. I have turned the phone on airplane mode, turned off my cellular service and just been using WiFi to avoid these crashes. Nothing has been found to work as every 30 min it will always crash. Anyone else having similar issues or does Zwift have any ideas on how to avoid this?

Thank you !