u/originalghostfox007

I've been working on this side mission for a few days now and I kinda want to throw my joycons in a furnace. All the Pumpkaboos I've come across and caught have been the normal sizes (or the XL Alphas), and the Jumbo just does not want to spawn. I've looked up how they're supposed to be different from the normal sizes, but all I see is that they float higher than the others.

Is there just an abnormally low appearance rate for this or am I just extremely unlucky? I have tried resetting the spawns, though I will admit to not understanding the in-depth mechanics of that.