Overview:

Users report triangle marks/errors appearing in some Events or Forms in certain Subjects, when clicking these Events or Forms the below message shows up:
"This form is no longer required based on other data entered. Click Reset Form to remove".

Further checking the audit trail of these Events or Forms, the log shows the Marked for Removal set to true record.

Why is this triangle mark shown for these Events or Forms in Vault CDMS?

Root Cause:

The Event or Form adds by a dynamic rule. When the rule updated its evaluation to false, the system attempts to clean up any Events or Forms that should no longer be in the Casebook.
If they are blank they are deleted. If they contain data, they are Marked for Removal as the system does not delete Event or Form data.

When Events or Forms are Marked for Removal, Sites can no longer enter data as it should not be present in the casebook anymore based on the Rule logic. When the user clicks the Reset Form button, the form removes from the casebook.

Solution: