I answered on @Kfm as he said that only one out of three “echos” perform the TTS.
As he didn´t mentioned which one is an real echo and which one is a sonos i recommend to wait a second between multiple TTS commands.
I don´t have an sonos but this limitation seems to apply to anything controlled by this binding.
@michi do you know something about issues when sending to many commands through the binding without a pause?
My next steps would be:
- Build an dummy switch that can be triggered through the sitemap
- Write a simple rule that sends an TTS to one speaker
- Trigger the switch and hear if the speaker says the TTS text
- Change the speaker and repeat
As i haven´t found any info about kfm´s setup i can only guess which of his three “echos” are sonos speakers.