The expert who could assist you with this thread isn't available today (long weekend for many in Norway) and is most likely back on Monday. We will get back to you early next week. Thanks for your patience in advance.
Unfortunately we don't have much in terms of assistance to provide here, except some general guidelines. Since you're running into more issues with 6 than 3 reflectors I think you need to allocate more time for each ranging process to complete before moving to the next ranging.
You have already gotten reples regarding the parallel connection ranging in this ticket for example, and this is not something we have tested.
Providing a finished code example for multi-connection ranging will be outside the scope of what support we can provide right now I'm afraid.
