Sophos Antivirus has provided their own KB in regards to how to prevent this issue in their software. Please see the following KB written specifically to address this ongoing issue:https://community.sophos.com/kb/en-us/132691
In addition to the above Sophos fix also confirm that the exceptions listed in this KB 5800
are applied for your antivirus programs. For any other Antivirus program, if you need assistance with making sure the appropriate exclusions are made to prevent scanning Windows Shadow Copy volumes/location, please contact your Antivirus Software support team.