Difficulty Won't Change

The difficulty for the world will be changed within the menu, but the environment will not change accordingly. When the difficulty is changed to peaceful, MOBs will still spawn and hunger will not regenerate. The difficulty appears to be stuck on normal. When I load up the settings screen after changing difficulty from normal to peaceful, the difficulty initially appears as normal, then changes to peaceful. However, the difficulty in the actual world does not actually reflect peaceful difficulty. The realm link is: realms.gg/jfwlsjxfg_4 – I am new to the realm as well. I am currently trying the realm mode free trial. Everything else appears to be normal. I am also playing on the Xbox One if that makes a difference.