honestly after an update, i just got received popup on the screen that my legit survival world will be turning off because my add ons are activated in my legit survival world, unlike the previous version that was allowed before an update Screenshot 1 & Screenshot 2
Linked issues
Comments 2
This issue is being tracked at MCPE-218472. Also, please note that you currently have your email address as your username. If that is not intentional, please change it here:
https://report.bugs.mojang.com/servicedesk/customer/user/profile
This is apparently a visual bug and you can still earn achievements, there's a hotfix on the way