A350 problem since SU3

[Hugovdv]

A350 since SU3; Around 50% of the time I switch from outside to inside view with the backspace key, all the switchlights in the cockpit illuminate in a bright “test” mode for 5seconds. During this event i cannot change their position. Very annoying.

[frank_m]

That is a problem of the controls, most likely a double association of a key.