Affected B1UP versions: 2017.0.6
If you have a right-click menu creator configuration, where a Top menu is only shown in specific modes.
If you right-click on the window with this configuration when in a not supported mode you get the following error.
This issue will be resolved in B1UP version 2017.0.7.
A workaround to this issue is to let the top menus be shown in all modes.