Looks like a function used in a library in the app may be causing the problem. https://developer.roku.com/docs/deve...lease-notes.md The eval() function is no longer supported and the Mezzmo app has this in a supporting library. We cannot package the app for upload because this requires our Roku device to be working but if you email support [at] conceiva [dot] com we can send you the app to side load onto your Roku.