Portal Compatibility in Proxies page is not getting updated.
Release : 5.1
'Portal Sync Application' scheduled task which may be disabled.
Enable 'Portal Sync Application' scheduled task and let the task run once, which will update the Portal Compatibility to "Up to date" with Green checkbox.
Please check sync task user has administrator permission for the database update.
In some cases, user restarted each node in the gateway, Portal Compatibility also change to "Up to date".