Where have the arrows gone on Outlook emails???

Thanks! I did get the arrows back once, but they are gone after I selected Always use Outlook service to load images. And I cannot get it back anymore by selecting Don't use Outlook service to load images! I don't know why.

After an update mine have just re-appeared!

I have discovered the solution for the missing arrows. You need to access the settings in Outlook Live. Select show all Outlook settings at the bottom. Select General setting then Privacy and data option. Look for External Images section and select Don't use Outlook service to load images. Once selected the previous and next arrows reappear when going back to your list of emails. The next test is to see if the arrows disappear again when selecting Always use Outlook service to load images. I hope this discovery helps

Weird. Changing that setting worked for me for a bit, but then stopped working on subsequent loading of the page. It's probably smart for privacy/security reasons to leave it using the Outlook service to load images, though. Microsoft just needs to fix this directly.

I agree the arrows do disappear at times, and the Always use Outlook service for images is safer. I am able to get the arrows back for a long session by setting back to Do not use Outlook and saving; then reset back to Always use Outlook and saving again. I know this is a temporary fix until Microsoft updates. I am wondering if Microsoft is insisting users of Outlook must install Office to get it all Outlook options? Is there a free version of Office?