Bugs with Dr Jenkel's experiment:
1.) Goldenwood Forest Event
A.) On my first attempt, Zetta had three Pokemon. A Sneasel, Alolan Grimer (Shadow Pokemon) and I don't remember the third one. But, the second time he had four Pokemon. A Type:Null, Sneasel, Weezing (level 14) and Marill. I don't think his lineup is supposed to change.
B.) No one has Shadow Pokemon after the first attempt (unlike the other events, which always have Shadow Pokemon.)
2.) Amethyst Cave Event
A.) After the first try, the first Xen Grunt thinks she's already lost to you. Thus, you can't re-battle her no matter how many times you revisit this event.
3.) Caratos Mountain Event
A.) The second Drone disappears after its first defeat. Thus, he is not there no matter how many times you revisit this event.