Hello and thank you for reaching out to us with this report.
It looks like a bug.
Please test in the last 8.5 version available and in case it is repeatable please report it according to our policies.
I would like to know what BackgroundHALShouldPause does, and how to use it. While it's listed in the HAL Primitives report, it is not used in source code and it doesn't appear in the LMS HAL...