Management Center (MC) is failing to push the policy to the WSS tenant.
MC logs show a HTTP Status Code 413
"POST /appliance/management_center/policy/universal/deploy HTTP/1.1" 413
WSS with Universal Policy Enforcement (UPE) as policy source
The policy size too large and is hitting the database query size limit.
A 413 return code indicates that the incoming policy is larger than 15MB in size.
This is a hard limit and cannot be changed.
The policy size needs to be reduced to a size less than 15 MB.
To avoid large policies it is recommended to utilize categories instead of large lists of specific URLs, domains and IP addresses.