[XTrojan]

It is difficult to tell what your problem might be. Lanczos4 is a very aggressive scaling algorithm. I would try Lanczos3 instead and see if the artifacts remain. What you are describing might be ringing from over-aggressive scaling. You shouldn't be scaling in linear light either, if that is checked. I would also uncheck all of the trade quality for performance checkboxes except for the one dealing with subtitles.

Try a different refresh rate and see if that is the issue. madVR's version of 3/2 pulldown is not that great, but it hasn't really bothered me. I've heard one person complain about 60hz playback before. Adding ReClock might make the problem better, but I doubt it. Outside of that, I don't know where to direct you. It sounds like you are going over the rendering queue a few times a movie. This has happened to me when 1080p movies don't match the target rectangle. I created a special profile in madVR to address these files as they would dip over 41 ms occasionally. Going over 41 ms will cause a stutter, but madVR will report the dropped frames.

Edit: I noticed you posted in another thread about using LumaSharpen. I would dump LumaSharpen and see if that improves matters. In my experience, artifacts will appear when using sharpening shaders.

I'll try disabling most "trade quality for performance" boxes and change to Lanczos 3.
Rendering isn't an issue as no frames get dropped.

Now that you mentioned 3/2 pulldown, if i always use 60Hz playback won't several frames get dropped since all my movies are 23.976Hz format?

I thought you might be playing back in 60 hz already. I was suggesting changing the refresh rate to see if that was the problem.

Artifacts seem fixed, the stutter isn't . The stutter happens randomly (usually once per 5min and on quick movements). Is 23.976 playback supposed to be like this since when i play 3D on Stereoscopic player everything feels smooth(it plays on 24P mode though and not 23P).

This issue for some reason doesn't appear on Stereoscopic player (Which uses CoreAVC 3D Decoder).

Edit: It's not max stats going over VSync limit either, da heck >_>. Lumasharpen isn't on.

Could it be audio related? I'm bitstreaming and have to put 275ms delay, otherwise lipsync will be out of order(this issue doesn't happen on Stereoscopic player, it plays them both perfectly synced together).

Edit2: This judder can't be MadVR or Intel HD, i'm gonna try to speed up the video to 25Hz and set refresh rate to 50 or 25.