Am having the same issue new PSN account and never linked my minecraft account with a Playstation before.
My minecraft account is just linked with iPad and Nintendo switch and it works fine!
Check for updates on my IPad there was none, so I uninstalled Minecraft then reinstalled it, and now am able to connect.
Thanks for your help in testing this.
What does the error say?
Unable to connect to world.
What version is your iPad running?
iPad Pro (9.7-inch)
Capacity: 128 GB
Model number: A1673
Version: 13.6
Build: 17G68
Are both your iPad and Android on the same network as the server?
Yes
Can confirm this is still happening with a fresh install of a Bedrock server Version: 1.20.81.01.
Those error log keep spamming on the console while a user is logged in to the server.
Here are the logs:
ERROR] [Structure] [[Jigsaw Structure]] couldn't be constructed, no pool named `minecraft:trial_chambers/chamber/end`