It sounds to me like nerves. Keep playing out (safely and social distanced, of course), let yourself get used to it so it's not such a big deal, and I bet your fingers will settle into doing what you already know they can do.

I'm the same way, BTW -- I can play the songs I write just fine, right up till I have to play the song all the way through without major mistakes for a scratch track prior to recording and then I'm all thumbs. Sigh...