Hey @unit23! : )
Did you download through Unreal Marketplace or GitHub versions?
If you are using the Marketplace version, can you test with the GitHub version?
Download: AzSpeech v3.0.7 (github.com)
I found a similar problem here:
This plugin (Microsoft OpenXR) isn’t working properly if downloaded via Marketplace because “This is a regression in how the Unreal Marketplace is packaging HoloLens plugins. They are investigating.”
So i decided to try replicating the problem again using the marketplace version (i was using the source code inside a test project) but now i got the same errors.
For some reason, the version that Epic sent to marketplace is not working as expected, I will try to contact them about this and look for a solution.
Hope to solve this soon. : S
The problem is solved and was related to the privacy of some dependency modules: Marketplace versions are returning errors when trying to package a game with this plugin · Issue #13 · lucoiso/UEAzSpeech (github.com) 