In SCOM 2016 the install button is greyed out when I try to import a management pack over one I’ve already imported. I can’t delete the MP and reinstall because some other MPs are dependent on it. Anyone got a workaround?
I guess the management packs have the same version so you cant reimport them.
If you want to reimport them you have to remove the installed one.
Remove the dependet management packs first and then reimport (export any pack you created).
If you still cant delete the management pack due to dependecys follow this guide:
The answer above is correct but this one is a bit simpler so might be a better place to start: http://scug.be/dieter/2017/03/20/scom-2016-import-management-packs-install-button-grayed-out/