Please go to the object explorer in Studio and highlight the control you've tried to interrogate.. what is being outlined - can you show me a screenshot?
Now go try finding the control in the Virtual Controls Tab while in Interrogation Mode. Right click the controls to highlight and create them if necessary. Do you see anything further down in the hierarchy? Can you attach a screenshot once you've found the control in the Virtual Controls Tab?
I suggest that you open an SR with support as it appears you need someone who can look at your machine. I believe you will need to add some controls for SAP from the Virtual Controls tab however, so that is the likely solution.
If you do open an SR, please post the SR number here for tracking purposes.
The following article will be help you in creating an SR-