EDIT: workaround below in #8 /EDIT
This is true even for very simple programs, even when this is the whole program:
servo B.0, 150
servo B.1, 150
servo B.2, 150
servo B.3, 150 ; This one and
servo B.4, 150 ; this one.
servo B.5, 150
servo B.6, 150
servo B.7, 150
do
loop
Swapping a 20M2 to 20X2...