This happend with one of the automatic Cloud Nodes updates in April and yes, correct way to fix it is to copy the executable from oldver folder into cloudnode folder and rename it according to the content of run-cloudnode.sh script.
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...