PDF attachments cannot be opened in Web Library or downloaded on Android

Hello,
I am experiencing a PDF file syncing issue. My Zotero desktop version is 10.0.6 on Windows.All my PDF attachments can be opened normally on my computer. My library items sync successfully to the Zotero Web Library and Android tablet. However, PDF attachments keep loading indefinitely in the Web Library, and I cannot download them on my Android tablet. I am using Zotero Storage, and I still have available storage space. I have already reset the file sync history and synced again. Files appeared to upload, but the problem remains.
Debug ID: D1758254439
Could you please help me identify the problem?
Thank you!
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