That almost makes sense but I can’t make any sense of it. Cyclic dependency maybe? Seriously though, this is a carousel animation, not a static image.
Change the Bokeh to any type other than “Disk”. Also, FSA level 5 is usually sufficient. For a better result than level 5 you pretty much need to head straight to level 16 cuz 8 and 11 usually look like crap regardless of the filter type…the distribution always seems to be somehow “out of phase?” or something. 5 is a whole lot faster than level 8.
Render tab, sample filters: Gauss is usually the blurriest filter but these tend to work backward from their intended effect when FSA is used. The lowest/closest filter value of 0.50 generally yields the smoothest results also.
Try this: Render with OSA 16 gauss, then OSA 16 catrom. See the difference? Now try rendering FSA5 with gauss. Use “J” key to move the render to the spare buffer. Click any image socket in your noodle to reprime the render. Don’t re-render though. Simply change the filter type to catrom, hover your mouse in the compositor window and use SHIFT+R to read back the full samle layers.
Using FSA actually renders an image sequence that’s entirely devoid of sampling (so you get to see it happen on the fly as the final step of the composite/post render operation) unlike OSA where samples are composited/fixed into a single image at render time. This sequence means that any post render operations are going to happen on each sample in that sequence rather than a single image. Doing this 5 times is a whole lot more time consuming than doing it just once but the increase in quality makes this a no-brainer if you’re using the compositor. It isn’t particularly useful otherwise.