Pickup Machines and pattern change

Hi everyone
Having trouble changing pattern while playing with Pickup machines. T1 has a PUM and sets the tempo. T5-T7 has perecorded samples that I want to arrange using different patterns. But I can’t change from A1 to A2 as I normally do when using FLEX and STATIC machines. In the shaky video you can see that OT is registering that I want to go from A1 to A2, but nothing happens.
Could there be some setting that I’ve missed?