Hello,
first things first: thanks for the great course material, Kai!
I'm currently doing the Beginner Course and I'm on Lesson 4 - Part 5 where we learn the Escobilla Arpeggio. I'm having the issue that when I'm planting my I, M, A fingers on the G, B, E strings and pluck them, the string gets muted by the planted finger on top of them. So I pluck the E string and because I pluck towards the fist/hand, the nail of the finger on the B string makes contact with it and mutes it with a buzzing sound.
Is there anything in particular I could look out for to prevent this? I've tried moving my hand position a bit but I've yet to come to a point where it really works for me.