Unable to add sub/addon domains to any of our servers

[sunk500]

Since the 86.0.8 we're unable to add sub/addon domains to any of our servers.

getting the error message that looks like this (for both add/subdomains): (XID rkqxg8) Error ID 28bfff6d99280

I checked DNS zone and removed the records and tried again but it still did it.
I also checked the tweak setting in WHM and the options look correct.

Only recent change I'm aware of is that we're on cpanel 86.0.8 as of a few day ago.

This is happening for all our customers across ~40 of hour hosting servers

Anyone else seeing this or just me?

 

[cPanelLauren]

Hello,

Are you getting any specific errors in the cPanel error logs in regard to this when you try to add a subdomain?