With a multimeter there are tons of things to check!
You can put it into OHM mode and test diode direction, the traces, and finally the switch itself!
Try to narrow down where the problem is.
First use tweezers to connect the two switch pads together and see if it outputs the key.
This way you can test that the PCB works.
If that works, try the same with the contacts inside the hotswap socket.
If that works, try switching the hotswap socket.
I don’t think the sweep has diodes. But if it does, check if the direction is correct.
Normally Ive had bad switches you could pop it open and make sure something isnt wrong or if it's easy enough swap it with a spare
Ergonomic, split and other weird keyboards
Posts must be of/about keyboards that have a clear delineation between the left and right halves of the keyboard, column stagger, or both. This includes one-handed (one half doesn't exist, what clearer delineation is that!?)
i.e. no regular non-split¹ row-stagger and no non-split¹ ortholinear²
¹ split meaning a separation of the halves, whether fixed in place or entirely separate, both are fine.
² ortholinear meaning keys layed out in a grid
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