MID on beam particle ?

Am i doing something wrong?

Trying to get a Dynamic Material Instance working on a beam particle system… doesn’t work in game, only in editor. 4.19…

mb you didn`t set in “used with Beam Trails” checkbox into material “usage” section?

Interesting obscure little setting… But that was indeed alreay set automatically…

Still no luck. The weird thing is, it works in editor.