Hi,
Thank you for sharing the information.
This does sound like an issue related to voice stealing and channel count limits.
I found a similar discussion that might be helpful : Lower Priority Events Are Voice Stealing Highest Priority Events - #2 by cameron-fmod
Additionally, could you please enable API Error logging and set the Logging Level to “Log” (Unity Integration | 8. Settings | 8.2 Initialization | 8.2.1 Logging Level)?
This will provide more detailed logs in the console. If possible, please share the full log output so we can investigate further.