AM Synths AM8044 (SSM2044) DIY need help

Check Mate

Hello,

I need some help with my self built AM8044 SSM2044 Low Pass Filter.
It works only partly and there are some issues.

1. The Cutoff Pot has a very small range and it doesn't close at all. It doesn't seem to open fully either. The Filter Trimmer does have an effect but it is very subtle.
I double checked all resistors.
I have built the module after the Schematics from the 2.0 project notes.
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Sound example(pure saw through the Filter/VCA): https://soundcloud.com/check-mate-808/am8044-faulty

If someone has a ready built or successfully built model and would send me a high-res shot of the PCBs to compare the resistor values etc. I'd be really grateful.
Maybe there are some experienced techs who spot a mistake in the schematics (maybe the resistor values in the Freq cirquit are too high?!)
Thanks a lot!!
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