Few years old 4.2.4 faulty PCB, which trace needed to cut?

[JuhaA]

a years back I got 4.2.4 PCB freebies from the Heatermeter store(?). I do remember that those PCB was somehow faulty and I think there were one trace which needed to cut and that's it. Could someone remember something about it?
I would like to build new HeaterMeters from those.

 

[JuhaA]

Got it! Images missing, but text should be enough.

https://tvwbb.com/showthread.php?53317-HeaterMeter-Hardware-v4-2-4&p=637282&viewfull=1#post637282
which leads to https://web.archive.org/web/2015021...eter.com/products/heatermeter-v4-2-broken-pcb