Minecraft sometimes shows me a message 'The world set as Single player mode' when I enter a minecraft world first.

Minecraft sometimes shows to me a message 'The world set as Single player mode' when I enter a minecraft world first. After that, the message don't be showed. Players are only me In the world.

Steps of Reproduce

1. Implement minecraft.
2. Enter some worlds.

Expected results

Minecraft doesn't show any messages.

Observed results

Minecraft sometimes shows to me a message 'The world set as Single player mode'.(But, minecraft might not show the message.)

(Reference : I uploaded a screenshot.)