I called Yuneec this morning to let them know of some issues I experienced yesterday and this morning with my new Typhoon H Pro delivered yesterday. Before calling Yuneec, I conducted some tests with the H Pro and got the same result every time. I noticed that when flying with Obstacle Avoidance set to "off", when doing a RTH, the H Pro loses altitude instead of coming back to the home point at the same altitude if over 30 ft. I also noticed the H Pro flew very slow in RTH mode (7 to 10 mph). The landing gear did not automatically deploy until I descended to 60 ft. The home point was much farther away (about 40 ft from my ST16 location) than my Base H I had before I got the H Pro. I told Yuneec I felt this could be a very critical bug because if someone loses Line of Sight and activates RTH, the H Pro while descending on the way back to the home point could crash into an obstacle in between the RTH activation point and the home point. Yuneec told me I was the first person that had called them to discuss this issue and that they would conduct a test at their CA location to see whether they could replicate what I was finding, and call me back and let me know their findings. I had not heard back from Yuneec by this afternoon, so I called a friend of mine in anther state that also received the H Pro a few days before I got mine. He performed the same test and had the same issues so I knew this was not an isolated issue. For any H Pro owners that want to conduct the same test, please do the following: 1. Put H in Angle Mode with Obstacle Avoidance set to "off". 2. Fly to an altitude of 250 ft and a distance away of 1,000 ft. 3. Activate RTH. Test to see whether the H Pro 1. holds altitude or descends. 2 if the landing gear activates immediately or only after descending to approximately 60 ft. 3 if the H Pro will land at a home point approximately 40 ft from the ST16. (Note because it was descending I got out of RTH at about 30 ft in altitude). (It was coming closer to the home point while descending and most likely would have landed closer to the home point if I let it. So this may have been closer to the home point if it had let it continue to land while descending). Repeat the test with OA set to "on". My experience is that the H Pro performs correctly as it should. i.e., 1) Did not descend until reaching the home point. 2)Landing point was within an acceptable distance from ST 16 (10 to 15 ft). 3) Speed is still slow as it does slow down with OA/RealSense turned on. Note that the firmware version on my H Pro is Auto Pilot v 1.23. This was loaded at the factory before the H Pro was shipped to me. If this is a firmware problem, and I believe it is, it could take some time for Yuneec to fix this bug with a firmware update. In the interim, just be aware of what appears to be an issue, and fly safely.