Exception occurred by smeltery in specific case

[balugaq]

Exception:
[22:24:46 ERROR]: [PylonCore] Error when handling block(pylonbase:smeltery_controller, Location{world=CraftWorld{name=world},x=-21.0,y=114.0,z=35.0,pitch=0.0,yaw=0.0}) ticking: Entity pixel_0 does not exist or is not of type SimpleTextDisplay
[22:24:46 WARN]: java.lang.IllegalArgumentException: Entity pixel_0 does not exist or is not of type SimpleTextDisplay
[22:24:46 WARN]: at pylon-core-SNAPSHOT.jar//io.github.pylonmc.pylon.core.block.base.PylonEntityHolderBlock.getHeldEntityOrThrow(PylonEntityHolderBlock.kt:59)
[22:24:46 WARN]: at pylon-base-MODIFIED.jar//io.github.pylonmc.pylon.base.content.machines.smelting.SmelteryController.getPixels(SmelteryController.java:462)
[22:24:46 WARN]: at pylon-base-MODIFIED.jar//io.github.pylonmc.pylon.base.content.machines.smelting.SmelteryController.updateFluidDisplay(SmelteryController.java:479)
[22:24:46 WARN]: at pylon-base-MODIFIED.jar//io.github.pylonmc.pylon.base.content.machines.smelting.SmelteryController.tick(SmelteryController.java:551)
[22:24:46 WARN]: at pylon-core-SNAPSHOT.jar//io.github.pylonmc.pylon.core.block.TickManager$startTicker$1.invokeSuspend(TickManager.kt:68)
[22:24:46 WARN]: at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33)
[22:24:46 WARN]: at kotlinx.coroutines.DispatchedTask.run(DispatchedTask.kt:100)
[22:24:46 WARN]: at org.bukkit.craftbukkit.scheduler.CraftTask.run(CraftTask.java:78)
[22:24:46 WARN]: at org.bukkit.craftbukkit.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:474)
[22:24:46 WARN]: at net.minecraft.server.MinecraftServer.tickChildren(MinecraftServer.java:1662)
[22:24:46 WARN]: at net.minecraft.server.MinecraftServer.tickServer(MinecraftServer.java:1530)
[22:24:46 WARN]: at net.minecraft.server.MinecraftServer.runServer(MinecraftServer.java:1252)
[22:24:46 WARN]: at net.minecraft.server.MinecraftServer.lambda$spin$2(MinecraftServer.java:310)
[22:24:46 WARN]: at java.base/java.lang.Thread.run(Thread.java:1575)

Reproduce:

1. Build a 5x4x5 smeltery or higher, and fill with fluid until full:

2. Place water inside:

This will make entities hide in the bottom (If now build the smeltery higher and fill with fluid, entities will come up from the bottom)

3. Restart server
   Then got exception and phantom block, entities alive

[Seggan]

Related to pylonmc/pylon-core#192