Problem solved!
One day I noticed that Home, End, PgUp, PgDn and the backlight keys on Type Cover 2 where not working properly.
Pressing those keys was actually activating their secondary functions (F1 - F12) and that was quite annoying.
An intermediary fix for this problem is to hold the Fn key while pressing Home, End, PgUp, PgDn and the others at the first row.
Ain't nobody got time for that!
This happened out of the blue because I had accidentally pressed Fn + Caps on the keyboard.
Pressing these 2 keys again reverted back to standard behavior.
TTYL