Error Adding entity to DSE..Continuously getting error logical column name [`*`] referenced by multiple physical column names:

A type mapping annotation is invalid: Table [PRTC_VendorCertificates] contains logical column name [`vckVal`] referenced by multiple physical column names: [`vckval`], [`vckVal`] (DuplicateMappingException) (APNX-2-4055-000)

Removed entity and DSE Verifies properly, added again and same issue.  Will not allow me to download DDL, click and nothing happens.

downloaded and checked All XSDs and all spelling and Capitalization the same. 

I am sure it is related to something Appian added automatically while I was working, but I cant find it in any ionterface or tool.

Screen Caps show Data Store, and both CDTs

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