I installed subject beta app to two CCGTV devices and a shield tv pro 2019. None of them will open the app - they just return to the OS menu page. I installed stable version 4.0.1 on one of the CCGTV deviced and it is running fine.
I tried force stopping the new beta, clearing its cache, and rebooting the device, all to no avail. I also tried uninstalling the beta, installing the stable (stable worked), then installing beta from the stable app's menu. The reinstalled beta will still not open.