A collar must have one and only one input. There are too many items in the input collection - Intergraph Smart 3D - Administration

Intergraph Smart 3D Troubleshooting Reference

PPMProduct
Intergraph Smart 3D
PPMCategory_custom
Administration & Configuration
Version_S3D
12.x(2018)

Meaning: Failed to create the required active entity to properly create and maintain a collar. A collar must have one and only one input. There are too many items in the input collection.

Recovery: Verify all information necessary has been entered and is not on the To Do List. Take appropriate action