When I use Apple Pencil to highlight the information, it perfectly syncs though all my devices. However, when I tab the word or longer sentence and select the content I want (In this case, we don’t have to use Apple Pencil to do this. We can also have an option for Highlighting the words or sentences you want), it sometimes doesn’t sync well though all the devices. Even worse, It’ll crash every time I touch the highlighted area without reasons by using other devises. For example, if I use my iPhone to highlight the information, I cannot use my iPad Pro to tab the highlighted area. And if I do, it’ll crash immediately and relaunch the app again, but the problem is still there. I don’t know what happened to this, but if this function can work as well as using Apple Pencil to highlight and sync perfectly through all the devices, it’ll be great!