Hi there,
Check to see if the version you are starting is actually the 3.5.2 version.
Have a look in finder in the applications folder and ensure you only have one installed.
I accidentally had two installed one was "VMware Horizon" which was 3.0 ( and also in launchpad ) and the other was "VMware Horizon Client" which was 3.5.2 ( not in launchpad ).
Removed the old one and all good.