I've had occasion to restart our vCenter Server Appliance a couple of times this week, and the following error message has come up after the appliance has restarted:
The VMware Tools power-on script did not run successfully in this virtual machine. If you have configured a custom power-on script in this virtual machine, make sure that it contains no errors. You can also submit a support request to report this issue.
We have not made any changes to the script, so I am wondering if this is a defect in the appliance? To my knowledge, it has not (and probably shouldn't, right?) affected operations.