I'm attempting to produce a turntable animation with 600 render passes at 1800x1440 pixels. The animation was 5 seconds long at 30 fps. It was a CPU render running on a system with 32 gb of ram, a Ryzen 5 3600x, and a RX 5700 xt. The render seems to have only done a few passes on approximately every other frame. The animation can be seen here: https://drive.google.com/open?id=1S703SGV7834SbE2bn2Am6R4SheHWF3t5 . Two example frames are attached. Before starting the full render, I did a shorter one at a significantly slower fps and render passes and did not encounter any issues. Screenshots of the setting panels for the turntable render are attached.
I can find now discernable difference between the renders for the two frames so why is the output so different?