In AR plane detection the plane prefabs generated by AR plane manager are tracked at a distance above the floor ,not exactly on the floor (In unity).
Is this how it is supposed to be, OR the implementation issue.
Is this on Android or IOS? Not sure if that would be a ARfoundation thing or ARKit/ARCore directly.
You do have to filter the ARplanes since some of them are not good. I’m actually about to do exactly that in my app and I’ll probably only use the lowest one in the Y axis to avoid those kinds of weird ARplane popping up higher than the floor.
Both Android as well as iOS.
Ok so your best bet is do some filtering of the planes and not use all of them. You can go through them using the ARPlaneManager and disable the ones you don’t want. Otherwise you can fill out a bug report to AR foundation package