In vsphere 6.0 some time we can see , through thick client we can see inventory but web-client empty
This is because of heap size on web-client
Increase heap size
In Windows, locate the file C:\Program Files\VMware\vCenter Server\visl-integration\usr\sbin)
\cloudvm-ram-size.bat and run:
cloudvm-ram-size.bat -C XXX vspherewebclientsvc (where XXX is the desired heap size in MB).