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Salesforce P1Salesforce P1 

errorprocessingrequest.jsp

Guest users upload files on a custom object without sharing mode.Authenticated users are allowed to download the files thru a custom LWC component which exposes the clickable link 'URL='/sfc/servlet.shepherd/document/download/'+docLink.ContentDocumentId'. This functionality worked absolutely fine in our Lower instances. 
However, when we went live, the users started receiving an error and a error file 'errorduringprocessing.jsp' is getting downloaded instead of the actual file.
Any help or leads is highly appreciated.
SwethaSwetha (Salesforce Developers) 
HI,

Is it currently working on Lower instances? Do you see any information in the debug logs?

Ongoing known issue: Feature Degradation - File Uploads and Digital Experiences / Content Management System (CMS) Data(https://issues.salesforce.com/issue/a028c00000prX8d/unable-to-upload-files)

Thanks
Salesforce P1Salesforce P1
Thanks, Swetha.
We have confirmed from the SF team, that the ongoing issue is not the cause of the issue. 
Yes, it is working in our Lower sandbox but not in PROD.