AnimToTexture is not working at Path Tracer

Hello!
i have a question.
i use unreal engine movie render queue path tracer for animation.
but i found path tracer error.
AnimToTexture is not working at path tracer.
activate about WPO console command but still not working.
path tracer isn’t support AnimToTexutre not yet? (but grass or tree’s WPO is working)
what should i do…?
does anyone have the same problem?

Thanks!