I don't see any resistor placement issues. I would recommend doing
THIS. It may be a crude approach to troubleshooting, but it resolves issues like this one with amazing frequency. Pay special attention to looking for possible solder bridging or other signal shorts as you go through the PCB.
If that still doesn't do the job, you may need to get into more in-depth troubleshooting methods, like taking DC voltage measurements. Actually, the best way to pinpoint such a problem is to work through the signal path with a
signal tester, but most forum posters don't have one of those. But you can always buy one or make your own from the posted BYOC instructions, since it's a very simple device.
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