The main purpose of my app is recognizing images from a physical workbook, and showing 2D animations "on" the page, accordingly, using AR Foundation to recognize the page and Camera's Ray cast hit to spot the correct image on the page. The iOS version of the app works smoothly (using AR Kit), but when trying to export the same project to an Android device (using AR Core) I find a lot of bugs - 1.A long delay before recognition 2.Recognizing one image as the other 3.Removing all detected images in track state limited, insteaad of only the last lost image. Completlty different resaults from the iOS version. The project is built on Unity 2019.4 LTC and AR Foundation 4.0.1 preview 2.