Sigma 2.8 17-50 - wrong distortion correction

Pulled down and tested _lcp build. Works, but over-corrects distortion on my test. Pentax Scenario is here:
https://discuss.pixls.us/t/lcp-file-distortion-correction-backwards/4241

I’m thinking the over-correction could be in the adobe LCP file, but don’t have lightroom to test it further.