Right board not working

The board works properly, but when I click the LED button the right half doesn’t change colors with it, but instead, only lights up in the bottom right key, the - and _, as blue. I try try to type with the right half and nothing works. Then, I unplug the right half and reconnect, but it only works after 2 or so tries.

The board works properly
I try try to type with the right half and nothing works.
I unplug the right half and reconnect, but it only works after 2 or so tries.

This is hard to follow.
You say the LED button renders the entire right half unusable until you unplug and plugin the USB cable a few times? When you say it’s working, do you refer to the keys or the LEDs?

I seem to recall the Chase effect (where the blue dot chases the red) having a bug where it crashed the firmware. Upgrading the firmware should resolve the problem.