Also a reddit discussion startet to discuss issues with printers.
It seems that KB3159398 causes: Some users uninstalled update KB3159398 – but this seems not the best idea.
If you want to access the user and the computer portion of the local security policy, you will need to switch to the Command Prompt window and navigate to C:\%systemroot%\system32 and then enter the GPEDIT. For deployments that do not include local management tools, you will have to either manage the group policies remotely or use Power Shell.
If you want to manage group policy remotely then you will need to have at least one server that has the management tools installed.
This shall fix the GPO and you should be able to use this GPO again.
Hope it helps – maybe Microsoft will release a revised update KB3159398 soon.
You will then be asked which group policy to manage.