Hi,Sir.

Does anyone who uses Houdini Apprentice Edition meet the problem as attatched this images?

The position of “Render Region” seems to be shifted

In Houdini FX Commercial Edition,this problem never happens.

I guess ONLY Houdini Apprentice Edition causes this problem.

Could you teach me some workaround?

It should be because of the limited resolution of Apprentice.

Uh-huh.
I can feel the meaning somehow.
But My camera setting is for a low resolution such as SD.
I'm not sure this is due to the limited resolution.

Try shrinking the viewport size and you should see the render region line up then.

Ah,make sense.
I noticed Houdini Apprentice Edition limits 3D View Port resolution when using Render Region as well as R
ender View. 8)