After become dissatisfied with Alexa TTS’s inability to pause or use punctuation properly, I’ve been testing Amazon Pollly today, and I can’t get it to work either. Pollly creates the mp3 in my cache folder, but it won’t play on any Echos.
Someone in another thread mentioned in passing that Amazon recently removed the ability to play local mp3 files. This would explain the problem, I guess?
Thinking about picking up a Google Home mini in the next sale to test out Polly.