The property field disappeared from the incident rules when select the Details (Key-Value Based)

Issue Summary

The property field disappeared from the incident rules when selected the Details (Key-Value Based);
On the customer's instance I see that the field is there, but once I'm adding any letter it just disappears. When trying to update the rule, I get the following error - We couldn’t update the rule. Property [field] should be one of [alias,description,extraProperties,source,message,priority,actions,responders,entity,tags]

When trying to reproduce it on my side, there's no property field at all and when trying to save it, I get the We couldn’t create the rule. Property [field] cannot be empty.

Steps to Reproduce

Please see the video attached with the full steps to reproduce and examples
https://www.loom.com/share/b3f2a6d560114b50ba05dc626f2e9058

Expected Results

The field has to be there to define the Details (Key-Value Based)

Actual Results

The field is not present and it's not allowing to save incident rules

Workaround

N/A