When a LED in matrix column 1 is lit, LEDs on the same row in column 4 and 8 are also dimly lit. This pattern repeats for column 9 for which LEDs in column 12 and 16 are dimly lit. This repeats for all rows and for all matrix panel modes and colours. The 4/8 and 12/16 column LEDs are quite dim, but still easily seen in a not so well lit room. The 4 and 12 column LEDs seem to be somewhat dimmer than the 8 and 16 column LEDs. Also, the 4/8 and 12/16 column LEDs flickers a bit when changing the patch and also afterwards, although at a slower random'ish rate.
Does anybody else have the same thing (dim your lights if checking for this)?