The option called force fixed frame rate interval used to render sequences that had very low fps smoothly at a give frame rate.
I have scenes where fps hits 2-3 fps but using the option in sequencer, it allowed me to render videos at my desired fps. With 4.20 I saw this in the change log.
But the option is missing completely from the sequencer or any other place.
Does any one know where it is and how to use it?