KNOWN ISSUE: Restarts from results files with Option set to 'Essential'
The Output Control option 'Essential' for the Results does not guarantee a clean restart.
Contrary to what is stated in the documentation, the mass flows which are essential for a clean restart are not written to the results file when using this option.
To get a clean retart, set the Option for the results file to 'Standard'.
ANSYS CFX Release 14.0.