snmpgtw has a dependency on MS Visual Studio 2008 vs2008_redist_x86 & vs2008_redist_x64 which is out of support and our security policy does not allow.
Release : 20.3
Component : UIM - SNMPGET
Will be addressed in an update, expected update release is around the end of June
To see the dependency, go to the IM console > Archive > right click on the package > Edit > click the Dependencies tab.