Emails Missing in Outlook Web App

If you are getting new emails on phone but not in Outlook Web App, but none of the following help:

• Clearing cache of browser 
• Trying a different browser 
• Trying a different computer 

Check the following settings:

1. Click on Filter at the top right of the list of emails
    
2. Make sure All is selected
    
3. Go to Sort by and make sure Date and Newest on Top are selected