[2021] My Slayer Points Suck

I am doing co-op slayer with tasks from Vannaka.

How it's going: All tasks have given 0 points.

Except the 10th task, that gave 2 slayer points to both of us

Just done another - "You've completed 12 tasks in a row and gain 0 points. Return to a Slayer master."

What the flying fehk is going on? Noone's alluding to any of this on the internet anywhere

Edit: @super_sammie is the real MVP