In Kryten's photographs, Kryten is seen celebrating his birthday with the crew of the Nova 5. This would have taken place centuries ago and when Kryten still had his previous appearance and personality. Yet he looks and speaks as he does now which is impossible as he only gained his current look and appearance after Lister and the others rescued him (see {Kryten (#2.1)}).
Lister jumps into a photo of Hitler making a speech at the Nuremberg Rally, and comes out with Von Stauffenberg's bomb laden briefcase. However, Von Stauffenberg's assassination attempt on Hitler was in 1944, at least 6 years after the last Nuremberg rally, and took place at the Wolf's Lair, not Nuremberg.
The slide of young Lister singing shows only the band playing on stage. When older Lister and the crew jump into the scene, they are able to go to the bar and then sit in the pub to talk to Lister's younger self. However, this should not be possible as it has already been established that they should only be able to move within the frame of the photograph.