while true do wait() script.Parent.CurveSize1=script.Parent.CurveSize1+math.random(-0.3,0.6) script.Parent.CurveSize0=script.Parent.CurveSize0+math.random(-0.3,0.6) if script.Parent.CurveSize1>=1.3 then script.Parent.CurveSize1=1.299 else if script.Parent.CurveSize0>=1.3 then script.Parent.CurveSize0=1.299 end end end
Don't use else if, use elseif. That is why your script broke.
while true do wait() script.Parent.CurveSize1=script.Parent.CurveSize1+math.random(-0.3,0.6) script.Parent.CurveSize0=script.Parent.CurveSize0+math.random(-0.3,0.6) if script.Parent.CurveSize1>=1.3 then script.Parent.CurveSize1=1.299 elseif script.Parent.CurveSize0>=1.3 then script.Parent.CurveSize0=1.299 end end
:)