Unable To Save Journey Map model because of "Requirement" Object

Hello there,

I get this ARIS error when I try to save after adding a “Requirement” object type to a “Journey Map” model type.

The following message shows up:

"Save failed. Internal error: invalid symbol. sumbolNum: 1306 modelType:274 objectType; 387"

Any thoughts at all?

Regards,

Essa Alowayyid