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Support Article

Section Basic and Advanced layouts do not display items



Section Basic and Advanced layouts do not display items post update to Pega 7.4.

Error Messages

Unable to load RULE-OBJ-MODEL xx due to Database-BadClassDef yyy. This may cause the wrong rule to run during rule execution.

Steps to Reproduce

  1. Update from Pega 7.2.2 to Pega 7.4
  2. Create a new section and click Basic or Advanced

Root Cause

An issue in the custom application code or rules.

As part of the update process, starting in Pega 7.1.8, the engine updates both the pr4_rule* and pr4_rules_vw tables directly. However, in this case, the pr4_rules_vw table was corrupt.


Perform the following local-change:
  1. Install HFix-46367
  2. Back-up pr4_rules_vw table
  3. Truncate pr4_rules_vw table
  4. Add the following settings in the file:
  5. Run the Expose command from prpcutils.bat or


Published January 30, 2019 - Updated December 2, 2021

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