For Android TVs that were previously being used as Chromecast devices, we now have the Android TV app where playback is much smoother and higher quality.
No progress with actual Chromecast devices unfortunately.
This is not the fault of Google Chromecast. Please shift the blame back to BT Sport. Explain why BT Sport is the only app that gives these problems. Chromecast works perefectly with other apps. BT - you own this issue, not Google
Well, no improvement "mid September" appears to have arrived. If anything, this infuriating buffering on BT Sport app is worse than ever.
Any update on this?
I too have constant buffering on the BT Sport app casting to a Chromecast. When I cast any other application (Netflix, YouTube, Disney+, Amazon Prime, ITV, etc) I can view without any issue, so this is solely an issue with BT Sport.
I'm afraid that late last year, I gave up on BT with this issue. For Christmas, I was given an upgraded 4k Chromecast device (around £70). I installed this device into the back of my LG TV and haven't had a buffering problem since. Perfect picture. Now, BT would no doubt blame Google Chrome for this, but I don't agree. I would argue that you should not have to upgrade your Chromecast device in the first place. I still blame BT. As we all know, the non 4k old Chromecast works well with Netflix etc.
The solution I was referring to was setting the Chromecast to 50 Hz from Google home. Did this but it makes no difference. There are posts from bt in this thread that promise a fix, but this has been going on for s long time.