Unable to Save in Adobe Acrobat

Issue

I am unable to save a PDF file, I am given a blank gray screen when selecting Save or Save as. 

Environment

• Adobe Acrobat DC
• Adobe Reader DC

Resolution

1. Select the Hamburger Menu in the top left
2. Navigate to Preferences 
3. Select General under the categories tab on the left side of the pop up. 
4. Ensure the setting Show online storage when saving files is checked
5. Select Ok at the bottom
6. Return to your document and the save button should now work for you