Can confirm in 1.21.5. Issue now only happens when Spawner is placed by the Server via Command Block or Function. Spawners only display entity when command is run directly by the player or when the world is re-loaded.
Bhexion
Can confirm in 1.21.5. Issue now only happens when Spawner is placed by the Server via Command Block or Function. Spawners only display entity when command is run directly by the player or when the world is re-loaded.