Taking multiple camera screenshots

[Ozeuth]

scene = hou.ui.curDesktop().paneTabOfType(hou.paneTabType.SceneViewer)
viewport = scene.curViewport()
frame = hou.frame()
# cameras = list of scene cameras
i = 0
for camera in cameras:
    viewport.setCamera(camera)
    flip_options = scene.flipbookSettings().stash()
    flip_options.frameRange((frame, frame))
    #flip_options.beautyPassOnly(True)
    flip_options.cropOutMaskOverlay(True)
    path_name = hou.hipFile.name().split(".")[0]
    if not os.path.exists(path_name):
      os.makedirs(path_name)
    flip_options.output(path_name+"/opening_"+str(i)+".png")
    scene.flipbook(viewport, flip_options)
    i+=1

Hello all, I have a list of cameras. The goal is to view the scene through the cameras, take a screenshot and save them.

I expect to get results like this, where I am looking through a specific camera, saved.

However, though the UI shows us to be looking through the correct viewport, we only ever save out the view from the last ever camera:

Any advice would be greatly appreciated! I have been unable to find a similar problem online. Thank You

Edited May 22, 2020 by Ozeuth