Guys is anyone else having issues with the Optus sport app since the update last night?
I can no longer cast anything to my chromecast via the optus sport app BUT if I switch to 7plus or even Fifa app no issue!
No problems for me since the update.
Sometimes a simple uninstall and reinstall of the app fixes the issue.
We've tested Chromecast with the latest software on both Android and iOS with no issues. My advice would be to run through Google's Troubleshooting Guide and if issues persist, raise a support ticket with the TV & Content team to further investigate.
Have you tried power cycling the Chromecast? Sometimes mine will not work with some apps until it's power cycled. Mine are permanently powered on in order to wake the TV.