The file format seems to have changed with no workaround possible to support UCC uploads.
The new UCC CAIS format is now supported. See our comprehensive documentation at https://help.texadasoftware.com/en/knowledge/2051/ucc-data
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The new UCC CAIS format is now supported. See our comprehensive documentation at https://help.texadasoftware.com/en/knowledge/2051/ucc-data