You may notice that certain .NET Core patches are failing to install.
It is possible that a later .NET Core patch is already installed, and this is causing the installation of previous patches to fail.
Normally, when a later patch is installed, previous ones should not appear as missing; however, these patches may still appear. This can be caused by the classification of individual patches in LanGuard.
For example, .NET Core patches 3.1.16 and 3.1.18 are classified as security patches, while 3.1.19 is not. This can cause the former to still appear as missing, and their installation failing (since a later version is already installed).
To resolve this issue, you may ignore the particular outdated patches (3.1.16 and 3.1.18 in this example) across the network, as a later version is already there.