It's definitely something that needs to be fixed, I had that issue with the Aviary. The ranger teams apparently had no room to gain access to the building, although there was nothing blocking their path. The MVU's managed fine but somehow the Ranger's couldn't. Since the last major update I haven't had much of a problem. But I am on Xbox Series X, could probably still be a last gen issue...
I'm just happy we can finally control the drones, I just found it quicker and easier to just do the scans myself.