Gold saucer quest npc not found

[Kairobot]

I went back today to see if she appeared after the maintenance and at first I found nothing there, like I did yesterday. However, I changed the camera angle slightly, and I was able to see Abbelina and her twin Amycia briefly before they disappeared again. Turns out, on the floor where they stand are two spotlights to indicate their locations, but the npcs flicker in and out of sight depending upon my location and camera angle. This is some wield glitch for sure. I can provide screenshots, if needed, to clarify this strange in-game glitch.

edit: it's actually a loading issue as well, and I had to log in and out get them to appear as well