How to determine which rule is firing on a Redwood page

Summary:

Trying to test Transfer transaction on Redwood and am receiving an error with no error message. We do have 2 Object Validation Autocomplete Rules against the Worker Assignment business object, but both include an actual error message and neither one should be firing here. How do I determine what is causing this error?

Content (please ensure you mask any confidential information):

Trying to test Transfer transaction on Redwood and am receiving an error with no error message. We do have 2 Object Validation Autocomplete Rules against the Worker Assignment business object, but both include actual error messages and neither one should be firing here.