Document Viewer is not rendering PDF in SAIL forms

Certified Senior Developer

Hi Everyone,

Environment Version : Appian 20.1 , Could instance

We have a SAIL Form with document viewer control , it stopped rendering PDF document in client environment 

but it is working in outside of client environment,  but it was working in all environments earlier.

quickly checked for Acrobat reader availability, it has following version in Version: 20.12.20041.394260.

its not loading in any browser, IE, EDGE, Chrome etc.

any thoughts appreciated.

Regards,

Venkat.

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