Realm keeps disabling custom addons

Seriously, getting real tired of Bedrock being in a constant state of inferiority. I setup a realm using an addon I downloaded off of mediafire (yes you can do that on xbox) and it the addon keeps being disabled in the realm itself. I leave, come back an hour later and it's gone, the only way to re-enable the mod is to make a new realm. Honestly I'm about ready to throw this game out the window.