If you get an error stating The text has an invalid graphics rendering context when loading a plan into Cubit as shown in the Fig.1, then there could be an issue with the current layout of Cubit.
Fig.1 Invalid Graphics Rendering Error
This issue can be resolved by clicking the Take Off Layout button on the toolbar (Fig.2)
Fig.2 Take Off Layout Button
The layout will be returned to the default takeoff layout, and no longer receive the error.