UPDATE: This issue is now resolved. Customization Analysis service is now functioning normally.
We are aware of an issue where the Customization Analysis service is not processing AX 2012 R2 jobs. We are actively investigating this issue.
You can continue submitting new jobs, which will be added to the queue and will be picked up for processing as soon as the service is back online.
We're always looking for feedback and would like to hear from you. Please head to the Dynamics 365 Community to start a discussion, ask questions, and tell us what you think!