This potential issue may be triggered when the below conditions are met:
After LAS migration, SaaS attribute of the XDT_PLT_CCS entitlement, which was previously cached as False in legacy licensing. This value needs to be reset and rechecked after LAS migration.
1. Run Get-ConfigSite and confirm SaaSEnabled is False.

2. Identify the Delivery Controller which runs FeatureChecks site service:
Get-BrokerController | Where-Object { $_.ActiveSiteServices -contains "FeatureChecks" } | Select-Object MachineName, DNSName

3. Restart Citrix Broker Service on this Delivery Controller.
4. Wait for approximately 10 minutes, and check Get-ConfigSite and confirm SaaSEnabled is True.

5. Identify the Delivery Controller which runs hypervisor connection site service:
5.1 Get-BrokerHypervisorConnection | select Name to get the name of hypervisor connection
5.2 Get-BrokerController | Where-Object { $_.ActiveSiteServices -contains "name of hypervisor connection" } | Select-Object MachineName, DNSName
For example, “testlas” is the hypervisor connection name in this site:

6. Restart Citrix host service from the Delivery Controller from step 5.2
7. Check from Citrix Studio and confirm that cloud hypervisor connections are out of maintenance mode.
Cloud-based hypervisor connections go to maintenance mode after a Citrix Virtual Apps and Desktops site migrates to LAS.