Batteries Widget Missing Devices

I recently received and iPad Pro and have the batteries widget on my Home Screen, as I do on my iPhone Home Screen. The widget displays the battery percentage for all of my devices, including ones I haven’t used since setting up my iPad, just as it should, with the exception of my iPhone/iPad respectively. I have restarted both of my devices, deleted and replaced the widget, all of the basic troubleshooting things really and yet none of it has fixed the issue. I have looked on google and Reddit for a solution to no avail. I don’t know if these devices are just unable to display each others battery percentages (which I find to be highly unlikely) or what is happening, but it is highly annoying, and I was wondering if anyone could help me? I have attached screenshots that show what I am talking about in case my explanation wasn’t good. Thanks in advance people of the internet!