LTX 2-3 i2v Custom Voice Native Workflow ID-Lora Comfyui, no errors, video ok, lips sync ok but custom voice choppy, broken, distorted voice

[Vini76170]

Hello everyone,
I've loaded the native LTX-2-3 workflow from ComfyUI, which allows the use of a custom voice, and it works; I don't get any errors. However, the voice is cut out and distorted when my character speaks. It seems to have correctly recognized the voice model because I recognize it, but the quality isn't good. Any ideas?
The sentences are in French; could that be the problem? I've tried with the Lora Talkvid-3k and Celebvhq-3k, and I have the same issue.