We, or the support from VMware, tried all of the above fixes to no avail. Through some testing with the help of vMotion, I figured out that it was being caused by one of the virtual machines. VMware claims that the issue was that the following lines were missing from the vmx file:
tools.upgrade.policy = "manual"
toolScripts.afterPowerOn = "TRUE"
toolScripts.afterResume = "TRUE"
toolScripts.beforeSuspend = "TRUE"
toolScripts.beforePowerOff = "TRUE"
tools.guest.desktop.autolock = "FALSE"
The only "tool" related line in our vmx file was:
tools.syncTime = "FALSE"
After recreating the virtual machine the issue went away. However, the above configuration lines are still missing and it's not causing a problem. VMware was eager to close the ticket, but I think the underlying bug still remains.