In vCPE test, we found that the following in mso.bpmn.urn.properties. Note that the Rackspace is incorrect.
 
mso.workflow.default.aai.v11.tenant.uri=/aai/v11/cloud-infrastructure/cloud-regions/cloud-region/Rackspace/RegionOne/tenants/tenant
mso.workflow.default.aai.v11.cloud-region.uri=/aai/v11/cloud-infrastructure/cloud-regions/cloud-region/Rackspace
mso.workflow.default.aai.v11.cloud-region.uri=/aai/v11/cloud-infrastructure/cloud-regions/cloud-region/Rackspace
 
We modified to the following and solved the AAI query error.
mso.workflow.default.aai.v11.tenant.uri=/aai/v11/cloud-infrastructure/cloud-regions/cloud-region/CloudOwner/RegionOne/tenants/tenant
mso.workflow.default.aai.v11.cloud-region.uri=/aai/v11/cloud-infrastructure/cloud-regions/cloud-region/CloudOwner
mso.workflow.default.aai.v11.cloud-region.uri=/aai/v11/cloud-infrastructure/cloud-regions/cloud-region/CloudOwner