Hello,
I upgrade from VM workstation 10.0.5 to 10.0.6 and after that my VMware Workstation software didn't start but crashed with a fatal error.
I did a reinstall of VM workstation 10.0.6 and then it started. However.....
I disovered i.e. that the Virtual Network Editor only has the 3 default VMnets. I had about 7 specific VMnets configured.
All gone 
Brgds,
Bas.