pdf file not found

[Xuxun_huang]

Hi Please, help

My pdf is not found when my appsheet have many user.

I can see my own upload-files.

But, when other people upload the pdf files. I can not see it as showed above.

I dont know what is the logic behind.
please, suggest

[SkrOYC]

First, that's not a pdf.

Second, check your Data -> Tables -> YourTable -> Security -> Shared?

It should be marked as shared for people to access a centralized data

Private Tables | AppSheet Help Center

[Xuxun_huang]

Yes, It is "shared" for all table. 
What should do next

[Xuxun_huang]

I am still stucked in this problem.  
Can anyone help me please. @Steve