Are you using the Rhino 6 WIP or is that s happening in Rhino 5. The options dialog that you posted a screenshot of does not look like the latest Rhino 6 WIP version.
Are you using the Rhino 6 WIP or is that s happening in Rhino 5. The options dialog that you posted a screenshot of does not look like the latest Rhino 6 WIP version.