High Availability pair randomly not in sync after Commit push from Panorama

• HA A/P is going out of sync randomly after a Panorama push
• HA A/P appears in sync at Panorama
• After running a config comparison there are no differences that would qualify it to be out of sync.
• No commit errors or similar situation reported
• The issue is resolved temporarily by performing manual sync from the Primary/Active.
• Both Active and Passive are reporting next alerts:

Active 2020/02/24 22:34:49 critical ha config- 0 HA Group 5: Running configuration not synchronized after failure
Passive 2020/02/24 22:34:49 critical ha config- 0 HA Group 5: Running configuration not synchronized after failure

• The previous message is generated when "Commit All" is done on both of the HA firewalls in the pair, and "Merge with Device Candidate Config" is set on Panorama.

• Any Panorama managing Palo Alto Firewalls
• High Availability Configured.
• PAN-OS 7.1 and above.
• Commit all and Push from Panorama with "merge with device candidate config" is set to yes or "force template values" box checked

• If one of the HA devices finishes the Commit job faster than the HA peer and local config gets changed due to this commit, a device will try to initiate HA sync job to the peer. However, the peer is still doing the commit job so HA sync job will fail.
• When the "commit All" is in progress on this box, ha sync is going to fail to show next error:
• NOTE: Please review the configd.log/ms.log files on Panorama and the ha.log/ms.log files on the firewall to obtain a comprehensive sequence of events. 

"2019-08-06 11:58:29.192 -0400 Commit jobs in queue on this box, please try again later

1. Uncheck "Merge with device candidate config" when pushing configuration to an HA pair firewall
2. Locally commit the local changes to the firewall.