Following are the checks I had run based on your suggestions
Chrome browser: Uploaded PDF file. Seems to work fine. Download seems to be the issue. All files (Converted ones and the PDF file) have issues with downloading.
Browser version: Version 44.0.2403.107 m
Firefox Browser (different machine) : Checked to download the PDF file and the converted document. I have the same issue for downloading from the Cloud Drive.
Browser Version: 39.0
NOTE: I am able to read the PDF file fine from the Adobe cloud interface, but have some format / character mismatches in the converted Document files in the cloud interface.
Suggest me if there are any specific tests needed that would help isolate the issue. Thanks much for the quick responses.
I had another thought -- is this happening at home or at work? I've seen situations where a network administrator will make a change to the corporate network that will prevent file downloads. That might explain why you suddenly started seeing the change.