weird playerlimit bug in MCBE

For some reason my friend's world looks like this on the menu and i cant join, any help?
Steps to Reproduce:
1. Open Minecraft for Windows.
2. Click the "Friends" tab and wait for a friend to join a world.
Expected Behavior:
It should be 1-10/10 of players, depending on the amount of players in the world.
Real Behavior:
Instead, it shows something above the max player limit, even going to extreme integers.