BP node "DrawMaterial" not work when preview Android ES3, If the turn on "Enable GPUScene on Mobile".

Hi everyone, I’m encountering a strange bug, or I don’t know if it can be called a bug.

That is, if you turn on the “Enable GPUScene on Mobile” on the settings, and run preview on Android ES3 model, your node “DrawMaterial” does not work.

!!! But it only draws once in your RenderTarget, at the very very first after you start the level, maybe 0.1 second, the following call will not work anymore.

What I mean is, if you add a Delay Node in BP, maybe 1 second. the all subsequent DrawMaterial call will not work, it will only work once at level start…

Is this a bug or something algorithm related reason, please teach me more detail, thanks!


something else:
It works well on PC Model, and If you turn off the “Enable GPUScene on Mobile”, it also works well on Android ES3 preview. Engine Version include 5.2 & 5.3.