We also had a problem with import in 8.4.
With segm fault 11, with Killed 9 on Mac and with m4getnewpage(): Failed to allocate virtual memory, GetMemPages() failed on Windows server
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...