Thank you for your message.
Unfortunately, we could not reproduce the issue. Could you please try updating Remote Utilities to the 6.12 Beta 1 version and see if the issue still persists after the update? In case if the issue persists even with the beta version, we'll see further what it might be.
Please, make sure that you upgrade both parts - i.e. Viewer and Host - to avoid the version mismatch. The 6.12 Beta 1 version is available for the download here
Please let me know if the issue persists.