Quote - I started rendering my first file with Callad's new meshlights which are parented to cameras. But, it started rendering as a "postage stamp." I guess this has to do with the cameras on the lights. But, I did turn back to the full-sized camera I was using. What can I do to correct this?

The lights are saved as 'scene', so DS also saved the render size which happened to be 91 X 91 which I used for the thumbnails.

When opening a scene file DS also loads the render size again so make sure you open your scene 'as new', then 'merge to scene' the lights. You should be good then.

To check (in case of problems) do this.

Close DS, start DS and load your scene. Check the render size in settings (menu: Render > Render settings). Now 'merge to scene' a light from my set. Now again check the render settings. Size still OK or have they changed to 91 X 91 again? If so re-adjust to the original size your scene had. Call Reality and check the size in the Output tab.

Does this help?