What were the technical challenges of stop motion animation in the nightmare bef?

Stop motion animation in general presents several technical challenges including frame-by-frame photography requiring hundreds or thousands of individual images, maintaining consistent lighting throughout the shoot, creating durable puppets with replaceable parts, building detailed miniature sets that can withstand repeated camera movements, and achieving smooth motion through precise incremental adjustments to puppet positions. These challenges are particularly pronounced in feature-length films like 'The Nightmare Before Christmas' which requires extensive frame counts and complex character movements. However, without specific verified evidence about this film's particular production difficulties, I cannot detail how these challenges manifested in its creation.