Summary

Invalid (inconsistent) license key. (-8,523) error when checking out from ASR trial license generated from FlexNet Operations On-Premises.

Question

Invalid (inconsistent) license key. (-8,523) error when checking out from ASR trial license generated from FlexNet Operations On-Premises v12.11.0.0.

Answer

This is believe to be caused by a known issue which has been fixed in FNO v12.11.0.1. Below is copied from v12.11.0.1 Release Notes.
==
FNO-11637 The hardcoded serverHostID ('FLEXID=6-a6300155') that FlexNet Operations
uses to generate ASRs caused problems in FlexNet Publisher.
==