I can validate that after installing Forms Fix Pack https://experienceleague.adobe.com/docs/experience-manager-release-information/aem-release-updates/forms-updates/aem-forms-releases.html?lang=en the issue has been resolved. Make sure to update your EAR files redeploy and update the CRX repository ...

I had the same issue it was caused by a custom repoinit script that was deployed under crx-quickstart/launchpad/config/org/apache/sling/jcr/repoinit that was causing the repository service to fail on start. Most likely the activate function is runnig the repoinit scripts and silently dying.  Best th...