The maxium size of particle emitters is just 10, but what I know is that you can set the size to > 10 but the sequence is gone. Is there anyways to expand the size range in the sequence?
I think it's impossible unless if ROBLOX actually take actions to this
Probably user error on how you are doing it. Works just fine for me.
script.Parent.ParticleEmitter.Size = NumberSequence.new(10,100)