System divider disapear when using "staff spacer fixed down" element

Helle everybody,

Bug occuring each time I tried to combine "staff spacer fixed down" element from Palette "Breaks and spacers" with system dividers (left or right): system divider disapear when placing the staff spacer.

System divider doesn't disapear from other systems. Order of actions doesn't change bug: happens equaly if I put system divider before or after "staff spacer fixed down". Place of system divider (left or right) doesn't change anything either. Instruments in the score doesn't seem to affect bug either.

No bug happening when using "staff spacer down" or "staff spacer up".

System windows 10, musescore versions 3.2.3.7635 and nightly 3.3.0.7955