Turn down the xtalk control on your bass drum.

There looks to be a lot going wrong in that video--some of which might even be eDRUMin bugs. It's hard to tell. 1. Your sensor seems to be placed too far forward. This is likely the route cause of your problem. Here's a rough sketch of where the magnet should be in relation to the sensor when the pe...

I just tested 'Alt-Tab' and 'Shift A' and both worked as expected.

Not when using custom notes. Maybe that's a feature I could add in the future.

If you're asking about what I'm selling, it's the sensor on a PCB, in a enclosure, and I send an appropriate magnet too.

It definitely used to work. I'll check it out today.

Well the sensor has to be well secured. If it can move around or even vibrate, that's going to be a problem. You might want to open the sensor up and have a look to make sure I soldered it well. I suspect it's fine, but you never know. Maybe your sensor isn't getting enough power? I did put a 0.1 uF...

Not sure what the problem is. You're sure the alignment of the magnet and sensor is good?

That shouldn't be the issue then. Do you know firmware version you are using?

How long is your cable? It needs to supply current so you'll want to use as short a cable as possible.