childpanel with filmstrip crash

Hey there, Kontakt (6.1.1) crashes when stacking a panel that contains an ui element with attached filmstrip into another panel. So nesting panels does not work.

is this fixed with last update or am I doing something wrong?

✌️

on init
    make_perfview
    message( "" )
    declare ui_label $demolabel( 1, 1 )
    set_control_par_str( get_ui_id( $demolabel ), $CONTROL_PAR_PICTURE, "picture" )
    declare ui_panel $panel_A
    set_control_par( get_ui_id( $demolabel ) ,$CONTROL_PAR_PARENT_PANEL, get_ui_id( $panel_A ))
    declare ui_panel $panel_B
    set_control_par( get_ui_id( $panel_A ) ,$CONTROL_PAR_PARENT_PANEL, get_ui_id( $panel_B ))
end on