Have you calibrated it outdoors in the open away from any metal objects? Have you let it sit in an open to the sky as much as possible spot and let it gather satellites? The only reason to fly with GPS on is for all the fancy features and RTH. You can fly your Anafi around you at close distances just fine without GPS. It may drift in the wind but if it’s low enough and the surface beneath it is right, the optical flow will help hold it in place. The Anafi flys great indoors because it can fly without GPS for this reason.
What is your previous WiFi camera drone experience and ownership? It sounds like you believe without GPS you can not fly or will not fly? Where did you here about faulty GPS modules? They are not using anything custom to them and that antenna is everywhere and works great for millions of products and they don’t really fail. Connections on WiFi networks are a whole other matter.
I’m not saying you are not having a problem but, your post unfortunately lacks detail other then you saw red, got scared, returned it, and now the new one is the same. With no information on what happened where and how under what conditions with what phone and OS, it makes it difficult to help you. Please provide more information including screen shots of what your the app is doing if you can.
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