SonicOS 7.3.3-7015 got released (pulled -7014) to fix NSM related issue
Without much noise the -7014 build of the 7.3.3 got pulled and replaced with -7015 to fix some NSM related issues, just in case somebody is affected.
GEN7-58565
After upgrading to SonicOS 7.3.3-7014 some SonicOS 7 firewalls managed by NSM may display as Offline or Out of Sync. In affected environments, Zero Touch provisioning and NSM communication may not function as expected. This issue is limited to specific management port 8080 configurations. For complete details, impacted configurations, and resolution steps, please review the following knowledge base article for details: Firewall Shows Offline / Out of Sync in NSM After Firmware Upgrade to SonicOS 7.3.3.
https://www.sonicwall.com/support/knowledge-base/kA1VN000001eeuD0AQ
--Michael