Last nightwas scheduled to perform with RatDog at The Palms casino and hotel in Las Vegas, but fans attending the show were in for a shock when the show went on without the Grateful Dead guitarist. Weir was “under the weather” according to a tweet from the venue , which also offered refunds to all ticketholders.

Sorry to hear @BobWeir is under the weather, but RatDog is on stage now. Refunds can be obtained from the original point of purchase. — Palms Casino Resort (@Palms) July 6, 2014

According to fan reports, the audience was told Weir was ill and advised not to perform. The crowd was also informed refunds would be available despite the show continuing. No further information on Bobby’s condition has been announced via Weir or the band’s social media accounts. Weir and RatDog are scheduled to play Humphrey’s Concerts By The Bay in San Diego, CA this evening, where it appears Bobby will perform.

[Photo by Paul Citone]

The members of RatDog soldiered on without their leader last night for a two-hour plus set. Drummer Jay Lane handled vocals, while the show also included an instrumental version of “Stella Blue” that featured guitarist Steve Kimock. “Big Boss Man,” “Loser,” “Not Fade Away,” “U.S. Blues” and “Hey Pocky Way” were among the other songs performed by the Bobby-less Dog. Weir has missed a portion of RatDog show before, on February 9, 2005 (he sat out the second set and encore that night), but never a whole performance. Ace also was unable to finish the final show of Furthur’s 2013 Capitol Theatre residency due to health issues.

Here’s a full gallery of Bobby-less RatDog photos thanks to Paul Citone:

We hope the weather clears soon for Mr. Weir, who has a number of RatDog runs scheduled through the middle of September.