Unable to expand the definition/diagram tree in reader mode
Possible causes
The Publish Optimized XT Reader Views option is not enabled
If the encyclopedia will be opened in Reader mode in System Architect XT, the Publish Optimized XT Reader Views option must be enabled in System Architect Catalog Manager because the Reader mode uses the REST API to communicate. In System Architect Catalog Manager, right‑click the encyclopedia and select Publish Optimized XT Reader Views.
The ILAC state has been changed
If the ILAC state has been changed then the encyclopedia must be opened using System Architect in order to recompile the property file.