Is it normal to always have yellow days after key sessions? It doesn’t matter so much during the week when the days after are short rides anyway, but it’s a shame to miss the longer Sunday ride.
Is this perhaps an indication i should go to mid volume?
Yes, and it looks like its coinciding ideally for you, after your Sunday Ride its triggered Red and you’ve rested, then after a had session it has recommended an easy one which coincides with your easy sessions, As you progress if you are riding like this normally the red day might become a yellow day and the other days a green day. My plan has done that. No need to change the level of your plan if you’re happy with it.