MDS Error when trying to image a 2019 Mac Mini

I’m getting the following error when trying to start the workflow on a 2019 mac mini. This workflow was created using MDS 1.8 prebeta. Trying to use installMacOSX 10.14.5

"Terminating app due to uncaught exception ‘OC_PythonException’, reason: '<type ‘exceptions.AttributeError’>: ‘str’ object has no attribute ‘UTF8String’ ’

please try the latest build. We have done a lot of unicode work but still are seeing some of these errors. The latest build of MDS 1.8 should resolve.