When a project is deployed in an existing project Compose mappings are found missing. The mapping comes back after...
1. When data source is a query, if we test the connection in the query window and click OK the mapping is restored.
2. If we clear the Landing area cache in the Manage task window.
This has been consistently happening with multiple projects and with multiple developers.
IDEA: If Qlik team can include a step at the end of the deployment process to refresh cache for the deployed project we can overcome this issue.