Back when moyashi first released their PostProcessing plugin alternative, I initially found it more helpful for adjusting scenes to my preferred toon look styles, due to the wider availability of LUT manipulation options. It also managed to avoid some of PostMagic's long-standing issues...but eventually seemed to have a number of its own stability/compatibility issues too. Moreover moyashi hasn't been seen around VaM in some time now.
After messing around with this plugin in its current state, plus some reading of the overview/updates, I think I can say you're now the one with the solutions to all our post-processing needs. If I understand correctly, the recent update works with SuperShot now too? Amazing work.
From what I’ve looked into so far, I suspect two main possibilities: an issue with the camera rendering order—
such as Post Another activating on the layer right after SuperShot’s anti-aliasing—
or Post Another itself causing the aliasing problem. When the plugin is active, the default Blender option is applied, and there’s a chance that this is what’s introducing the aliasing.
To save performance, I used a format suited for FHD resolution.
I even tried switching to a higher-quality format only when the SuperShot plugin was active, but it didn’t have any effect—possibly because I modified the code incorrectly.
When I attempted to check if it was a rendering order issue between effects, things got tangled enough that the visuals looked different from before.
It’s all quite complicated, so I really wish someone skilled with code could help out. Honestly, I’m not even sure about the cause I’ve identified.