Despite the later air date of this episode, this one must have taken place between Last Days (1995) and Prince of Wails (1995), based on what Quinn and company are wearing at the start and end of each episode.
When Wade falls out of the vortex in front of the hippies, her pink shirt is dirty. When the hippies walk up to her, her shirt is now perfectly clean.
Quinn stands behind the Professor and picks up a rock to toss at the wasp on his back. In the close-up of the Professor, the rock comes from someone in front of him.