Project Tenant Overview and Tenanted Release Deployment Endpoints Slow Due to Missing Variables #9815
Description
Severity
UI Performance
Version
2026.1.3124
Latest Version
I could reproduce the problem in the latest build
What happened?
When a Project with lots of Tenants has many missing Project Template variables, the endpoints /Spaces-1/projects/ProjectName/tenants and /deployments/create are slow to load due to the /bff/spaces/Spaces-1/tenants/variables-missing endpoint.
This can cause delays with the UI loading for the Tenant Overview for a Project, as well as the Deploy a Release page when selecting a specific Tenant.
Reproduction
Configure a Project with ~100 Tenants
Add many Project Template Variables without values
See UI slow to load for Tenant overview for the Project
Error and Stacktrace
N/AMore Information
Internal Link - Slack
Internal Link - Zendesk
Similar to #9636
Workaround
Reduce the number of missing variables for a Project