Hello All,
I faced the same issue.
The problem is that although the InfoObject is active as an 'InfoObject', it also should be activated as an 'InfoSource' and 'InfoProvider'.
For this, go to the tab 'Master Data/Texts' and give the application component name for the InfoSource and the InfoArea for the InfoProvider. You can see that the check boxes InfoSource with direct update and Characteristic is an InfoProvider will get checked.
I hope this solves your issues.
BR,
- Midhun George