When running Full Inventory the following error messages are in the logs in modules InvAPI.dll and InvAgent.dll:
EDID value not found
Error loading document: Required white space was missing. (-1072896759)
catch(...) - Unhandled exception has occured.
Failed to gather the inventory
Inventory Agent has finished gathering inventory with few errors. Please refer to the logs for details
This issue was tracked down to the Task Scheduler Windows data class:
8.6 RU2
Longer than expected characters in Description field for an item in windows Task Scheduler.
Inventory failed for systems that had an extremely long Description for an item in Windows Task Scheduler.
A fix is being prepared for RU3. Updated binaries are available from support if needed.