Business Rule is not available, only business rule set is visible in Business Rules

Hello,

I loaded business rule objects by following the instructions mentioned in the below article, but when loading is completed I can only see Rule Set and no rules below the said rule set.

https://support.ptc.com/help/wnc/r12.0.0.0/en/index.html#page/Windchill_Help_Center%2FBusRulesObjectsLoad.html%23

Please let me know what could be the root cause for the issue.

Regards,

Sha