"Old Bedrock world does not have Chaos Cubed content

My old Minecraft Bedrock world does not recognize the new Chaos Cubed content. Cinnabar and sulfur caves do not exist in this world. A new world with the same seed has the content correctly. The block does not appear in Creative inventory and commands work in new worlds but not in this old world. Version: Bedrock 1.26.33.1, Android.