Meshwarp makes drawinglayers disappear in renderview

hi there.

I have a little something with some copied layers offbf animated smoke, deforming it a bit over a meshwarp node.

when i look at the render preview three of the five layers that run over the defom mesh just disappear. there is no z-depth to any of it. they are not otherwise displaced in space. they are just duplicates of the other ones infact.

when i duplicate the meshwarp node and connect it to the three layers they also vanish in render view.

this is pretty annoying. is there any reason/sollution for it?