I had this issue once i had first updated to 1.14.0 but didnt think much of it as it dissapeared when i relogged, But its happened again when i loaded up my private world which i will state the settings of below.

World Name:World

Gamemode: Creative

Difficulty: Peaceful

No world Preferences

Infinite type world

Simulation Distance: 6 Chunks

Pvp: Off  Co-ords: On

Fire Spreads: Off  TNT Explodes: Off

Mob Loot: No

Natural Regeneration: Yes

Tile Drops: Yes  Immediate Respawn: Yes

Respawn Radius: 5

Experimental Gameplay: Yes

Cheats on

Education Edition: Yes

Always Day: Yes  Keep Inventory: Yes

Mob Spawning : No   Mob Greifing: No

Entities Drop Loot: Yes

No weather Cycle

Command Blocks Enabled: Yes

Random Tick Speed: 1

 

Game Version: 1.14.0

Device: IOS 12.1

Texture Packs: Global Resources Only