stubborn pop-up at AE startup: Sheffield Softworks Makeup Artist will not be available

Reach out to the publisher and ask for instructions on how to uninstall or update their software:

https://www.sheffieldsoftworks.com/about/contact/index.html

You you can also disable the plug-in.

On Mac, you can add symbol that appears when you type Option L before the plugin name.

On Mac or Windows, move the plugin to the Desktop.

-Warren

Try deleting Ae Preferences:

Close Ae.

When clic to open Ae, immediately press Shft + Alt + Cmd (on Mac) or Shft + Alt + Ctrl (on Windows) and keep pressing these three keys until If you see a dialog box where you are asked if you want to delete the preferences, press OK.

Those are not default AE plug-ins, so I have no idea what you actually did. A quick Google search suggests that those are FX Factory plug-ins and you may be using them in FCP or whatever already. Since FX Factory is a universal plug-in host, it would hook up to AE automatically. You may just need to get a compatible version to actually use them in AE as well and/ or expand your license to include AE. Otherwise I'd consider this merely a friendly warning about compatibility issues...

Mylenium