Tried the latest patch - it's the same result; some characters are slightly transparent. As far as performance; I think is the same as it was initially - 800x600 runs fine. 1024x720 to 1360x768 is a bit laggy at times but playable. Didn't try anything higher, but I assume I'd have to overclock to play in 1080 comfortably.
Here's my Onimusha saves and error.log(I'm not that far in the game though... 1st save is just after entering the castle, I think. 2nd save is just before water puzzle trap near the hallway with the gates/levers and holy armor chest...)
https://www.mediafire.com/file/9tlb593cspk3ik … AndError.log.7z
You're correct about the shaders not activating properly for me, it says that at the bottom of the error.log.
Also, I noticed something about the new marcos. It's not a huge deal but when I'm holding the stick forward and running, if I do a 180 turn I stop moving. This also happens if I attack. If I'm holding the stick forward as I start an attack, once the animation is finished I have the press the stick forward again to keep moving. I noticed that this doesn't happen if I disable Xinput support. Actually, maybe it's a problem with the Xinput. My brother mentioned it a few days ago but I've been using that dinput8.dll fix I mentioned a few pages back so perhaps that's why I'm only noticing it now(I removed that dll to test your lastest changes...)
Edit: Added some info...