Pandorama was making his first appearance since the 2011 Cheltenham Gold Cup having been sidelined with a tendon injury when running in the Lexus Chase at Leopardstown last week.
Noel Meade's inmate came home seventh of the eight finishers and although there was no recurrence of the old problem, he has suffered a minor setback.
Meade said: "He's pulled a muscle behind and he's quite sore on it just at the moment.
"Paul (Carberry, jockey) thought he just stretched a bit at one of his fences.
"He won't be able to do anything for another week or so and we'll just have to see how he goes.
"Hopefully it's not too major as I'd like him to have his second run back in the Hennessy.
"It's unfortunate, but his front legs seems fine, which is the main thing."