Hey folks, we are aware of an issue that can occur when you open a map while there is a verse compile error in your project. Your verse devices will appear broken and the editable device references will be missing. This can happen when UEFN is updated with changes that cause parts of your user scripts to no longer compile correctly. This issue can be resolved by fixing the compile errors and reloading the whole project. Avoid saving the map while your devices are in a broken state. Do not replace the device as recommended in the UI.
We are aware of this and are working on improvements to the user experience.