Missing external effect

This is driving me nuts - I accidentally removed my external fx from VST connections, I had a preset “Bricasti M7”.

So I’ve created a new one with the exact same title and settings, but now when I load up all my old projects it’s saying:- “the plugin Bricasti M7 2 could not be found”

And I look at the mixer and there’s a plugin “Bricasti M7 2” greyed out - so I have to go to the fx channel and manually re-assign from the greyed out one to the one I have in my VST connections.

Any ideas how I can get things back to as they were?!