Execute TDML open infoset dialog fails to open infoset

On windows 10, after debugging a schema through execute TDML, the open infoset dialog box fails to open the infoset.

Could the final slash before the file name be causing the problem?

Reproduce the failure on Windows 10 by debugging a schema through Execute TDML and selecting the open infoset dialog. Trace how the dialog handles the generated infoset path, including the final slash before the filename; done means the infoset opens successfully.

Written by the indexing model from the issue text.