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I'm trying to view messages that result when tracing on Exchange Online however clicking "view message in explorer" always loads a blank page. In addition, picking to hunt for the message generates an error. The account I'm using is a global administrator. Any idea what I need to change to be able to view them? 
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Hi @SB Admin
You can try the following:
1) Clear cache in your browser:
https://support.google.com/accounts/answer/32050?hl=en&co=GENIE.Platform%3DDesktop
2) Open a ticket with Microsoft at https://admin.microsoft.com/ > Help & support
If this is helpful please accept answer.
Thanks for replying, however clearing the cache as well as trying on a different workstations didn't work. Despite the account I'm using being a member of the global administrator group, does it need to be a member of any other groups to view results or should it work with the global administrator without changing any other settings? Or does this require a special license such as Defender for Office 365 Plan 2, etc.? Thanks
Hi @SB Admin
You would have the necessary privileges with Global Administrator. I do not believe you require a special license to use the message trace, thus you should try opening a ticket with Microsoft via the link I provided.
Turns out it's a licensing issue since it works after signing up for a trial to Microsoft Defender for Office 365 (Plan 2).