Weird duplicate value error message

I got a question on the duplicate records error message. We recently have two Salesforce production orgs with skuid 9.5.11 version. In the same page, I want to add duplicate Order number to test. However, I got different error messages and the first one works probably while the second doesn’t. Please see the following screenshots.

Org 1


Org 2


Does anyone know why the second org has the wrong message? Which parts do I need to check with? Thanks.

Is your setup on the backend identical in both orgs? Furthermore, are your permission sets identical in both orgs?