Steps to reproduce the issue:
- Create a process app with ADF having a tasks details page (based on tasks details component).
- Create an APS process and APP having at least one single user task with at least one single "Attach document control"
- Initiate an instance of the previously designed/published process
- in the user task having the "Attach document" Control, try uploading a pdf and downloading it again.
- Open the downloaded file and note that it is corrupt
- Open the downloaded file in notepad and observe the content.