random rotation using curve flow
 

hello. i'm wondering how to apply random rotation to objects, instanced to particles with curve flow. i set Aim Direction to Velocity, so that objects are oriented along the curve. then i've created custom attribute "flow_particleShape.object_rotation = <<rand(0,360),0,0>>; ". but when i assign Rotation of the instancer to object_rotation, the objects have random rotation on x-axis, but are not oriented along the curve anymore. could someone help me with that problem?