In the installable cloud app, the RibbonBar control displays blank.
Cause:
The script file (XML/JSON) that is used to create the RibbonBar control is not selected and deployed with the project.
Solution:
1. Open the PowerServer project object, go to the External Files tab, select Files preloaded in uncompressed format and then click Add Files to add the RibbonBar script file (XML/JSON).
2. Deploy the PowerServer project again to make the change effective.