I beleive it is light (RoxyVon E3) interfereing with top nav cameras. Working on lighting design to go with our crash guards. Works fine when I stick light on top center with dual lock 3M tape. I have over 100 crash guards out there for almost 2.5 years without any problem.
Thanks for input tried reset NG. Just want to check if it is problem with drone does not appear to be. Back to another prototype.