Hi Gary. Nice to be here again.
I've made tests with several voices.
The result was always the same.
But regarding to this
Issue, I Disabled the Plugin Support.
No freeze any more, when previewing the TTS phrase.
To be sure EDDI is the reason for, I've took the EDDI folder out of the plugin folder. (and enabled the plugins again)
Still no freeze.
Move the folder back and the Issue is there.