Capturing the scene more than 8 times per frame doesn't render non static actors


I am trying to create a plugin to capture stereo panoramas using multiple scene captures.
I did that by doing many 2d captures the same way as the SceneCapture2D component and uniting them in one picture.

Problem is: if there’s any non static object in the scene, it’s not rendered correctly after the 8th capture done on a specific frame. It’s simply not there.
Is there any hard limit on how many captures work per frame? Or is that simply something done fo performance that could be disabled?

Thanks in advance,