Important note about SSL VPN compatibility for 20.0 MR1 with EoL SFOS versions and UTM9 OS. Learn more in the release notes.
When I import the url files in existing url categories, we're facing the below issue.
Hello Edward,
Thanks for reaching out to Sophos Community.
It seems this is an identical post like this one: (Missing Forum Thread) , but you have put additional details on this post. In the future, you may choose the option to edit and add more details instead of creating a new thread. 
That said, I shall delete the first post shortly and let's stick to this recent one.
Thanks
Raphael Alganes
Community Support Engineer | Sophos Technical Support
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