hi you can adjust mesh size in initial particle.
there’s 3 options stay side by side.(mesh size,sprite size,ribbon size)
your using mesh particle so you should adjust that.
How about deleting that scale mesh size and set it in initialize?
and the ribbon size is for controlling ribbon’s size. It’s another type of particle,has nothing to do with mesh,so do the sprite size.(sprite is a 2d image)
unfortunately I also have no clue why it disappears.
usually it should work.
it works the same as the one in the initialize particle.
difference is that everything in the update particle runs on tick.
you could treat the initialize particle as “begin play” in blueprint,it only run once.
if you don’t need it to change size gradually,you can delete it from update particle module .