Fasnacht. What am I doing wrong?

I have run over 20 events over the last two days and all I am getting is one of each of the normal masks. One after the other.

I know it probably sounds funny but at this stage i’m wondering whether I am doing/not doing something that is contributing to this scenario.

The only normal masks I haven’t received are the new Pitman and the Jester ones. I’m sure they will be my next two drops.

Is it dropping these until I have all of the normal ones first? It can’t just be bad RNG, could it?