This issue might have happened for a really long time now. But I would like to create this issue just to remind you.

   According to the attachments, You would see the world lighting bug in the first image and causes hostile mobs to spawn in the second image after updating the world lighting.

   I don't know if this is related, But I played survival and found out that hostile mobs spawn during the daytime, It really made me f***ed up.

  Though this can be fixed by rejoining the world. But please fix this bug. ;(