Yes, the Amazon browser will definitely be one we'll test.

Our developers are able to replicate this problem on various smart TVs. Unfortunately, diagnosing this issue would be really challenging since smart TV browsers do not provide the typical error logging and developer tools necessary to troubleshoot. Given that we have a v.4 of AC Central in the works which will have a completely new web version and should be released before end of 2022, we will not be investing in fixing this issue. We will make sure v.4 works on the major smart TVs browsers although we cannot necessary support all of them given our limited budget. In the mean time, we recommend using Airplay or Chromecast from your computer or mobile device to the TV. Or connect via an HDMI cable.

Thanks for reporting this. We have our developers checking in to the issue.

That is not the case on any device we can access. Please follow the steps here: https://accentral.userecho.com/en/knowledge-bases/2/articles/166-general-app-troubleshooting

Video in landscape is already possible on both iOS and Android versions of AC Central. Did you make sure auto-rotate is not disabled on your device? 

Both of these requests are currently in the works as part of a complete redesign of our user interface / user experience.

Each congregation manages their own sermons. We (Onward Media) do not have any control over what sermons they post or when they post it or if they take it down.

Thanks for letting us know. This has been fixed. You will need to delete and re-download the song to your device (it may take a while for the updated lyrics to show up if the data was cached.)