I've uploaded a pdf on a MacOS, but I could only view the pdf on IOS phone, but unable to view the pdf on an Android phone

First, search the help docs and this forum. Maybe your question has been answered! The debugging steps can help, too. Still stuck? Delete this line and proceed.

What I’m trying to do

Things I have tried

I have reinstalled Obsidian on Android phone, sync again, but the issue is still not fixed.