Error: -18 License server does not support this feature

Problem:

This seems to be caused by the client and the server having incompatible information.

Cause:

If this error occurred after upgrading a product on the client machine(s), it is possible that the license server is no longer compatible with the client software.

As well if the license file was re-read on the server while the client application was still running, this message may be displayed.

Solution:

Out of date license server:

Solution: Upgrade or re-install the license server from the License Server link on the new Downloads page which will require an Amazon login.

Re-read license file:

Solution: In most cases, this error is harmless and restarting the client application should resolve the error.