Images not displaying correctly in Joplin on cell phone(Xiaomi 15)

Thank you. I can open the viewer of files when I taped the attach button and selected files. When I chose a file(not only image files, any files, such as a pdf file), it can be added into the joplin notebook. What differece is Joplin cannot get the filename automotively, instandly, it use a number(I think the number is the file size in KB). I can share the file to my file manager and change the filename, add the .jpg to the filename, I can open the image.