David M. Russell/AETN
Lindzi Scharf
October 31, 2013 AT 05:00 PM EDT

The fashion challenge on tonight’s episode of Project Runway All Stars causes one of the designers to bug out.

After a visit to the American Museum of Natural History’s insect exhibit, the contestants are tasked with creating an avant-garde outfit inspired by the creepy crawlies. Back in the work room, Elena Slivnyak (season ten) begins to crack under the pressure. She screams, she paces, she throws a full-on tantrum, she pisses off the other designers, who are trying to focus on their own projects. “It’s really like [walking on] egg shells with her,” Christopher Palu (season ten) says. “Her mood swings are insane.”

Along with All Star regulars Alyssa Milano, Isaac Mizrahi, and Georgina Chapman, jewelry designer (and Tobey Maguire’s wife) Jennifer Meyer and Project Runway season 9 winner Anya Ayoung-Chee appear as guest judges.

Watch a teaser clip from tonight’s Project Runway All Stars after the jump. 

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