Trouble importing company logo

Trouble importing company logo

Hi,
 
Currently using Op Manager build number 7502. We are wishing to rebrand our report headers with our own company logo.
We have tried to import a comapny logo jpg via the "rebranding" section under "Admin". We select the logo and click import. Once this was do we restarted the Op Manager server/application.
 
The report header logo will not change, still default Managed Engine.
 
Is there a fault here or do we need to follow a different process?
 
Regards
Corie

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