Please see a comment we got from sophos support:
Since our latest update to Sophos Central (2.20.13 - April Release onwards), Sophos Web Control and Web Filtering has received a large overhaul. This is not something we can revert however we've found some Web Filtering products previously used alongside us now conflict.
This impact was discussed with our Product Management team who have given our above response.
Im looking to find other users effected as they seem to be advising they cannot \ wont resolve this issue which in turn makes our product not compatible with theirs
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