I get the feeling the ragdoll not working is intentional. Dev is apparently hellbent on removing anything he perceives as "the funny", and since people found ragdolling funny he might have just removed it.
Edit: According to multiple people on the discord, the painting and poster thing is not a bug. It's a feature. The dev purposefully made the paintings and posters display blank unless you re-enable the funny in settings, which requires solving a math problem.