Rockman 4 Minus Infinity Problems

So I tried to make a Repro of it on a ETROM-01 Board and connected the chips as follows.

PRG:
Pin 1,2,24,30,31 bend up.
Pin 1 connected to hole 30 (A19)
Pin 2 connected to hole 24 (A16)
Pin 24 connected to hole 31 (OE)
Pin 30 connected to hole 1 (A17)
Pin 31 connected to hole 2 (A18)

Booted the game withot CHR-RAM. Worked just fine, scrambled graphics.

Now I soldered in the CHR by doing this:
Pin 1,22,26,27,28 bend up and seat back 3 positions so pin 1 is at hole 3
Pin 1 not connected
Pin 22 connected to hole 31 (OE)
Pin 26 and 28 connected to hole 32 (VCC)
Pin 27 connected to Famicom connector #47

Now I still get weird graphic glitches. Mainly with empty tiles, see screenshots.

P.S. The SRAM I'm using is a WingShing 6264LLPG-70

What am I doing wrong?
It's also the newest version of the game.

Problem solved. I changed the SRAM with a MOSEL 6264.