Toolkit keeps adding a group (Group Adress 0) in my project (Application 56)and shows that one of my DLT is using that group. A close inspection of the DLT does not show the GA being used. The only logical explanation is, I am using secondary Application (Application 55) in this DLT and in this applicaition there is a GA 0 being used by the DLT. Could this be reason? If so, it is a known bug?