Lever does not switch or only when the right side is pressed very hard.
Sometimes the magnet is too strong or the reed switch is too sensitive. The result is that when you press the
right side of the lever the black King symbol is still on left side and the white King symbol is on the right. It
does not change when you switch the lever. Perhaps when you press the right side very deep the symbols
will change.
Solution
You may turn around the small pcb on which the reed contact is placed. In this way the distance between
magnet and reed contact is larger.
In most cases this will solve the probem.