Niagara Fluids is unusable in UE5

If I create a new system with any of the Fluids templates (Gas Explosion, Dust Explosion, etc), my log get’s filled with warnings like these:

LogNiagara: Warning: For some reason we are reporting that /Game/ShootGun/Emitters/NS_ImpactSmoke.NS_ImpactSmoke:Grid3D_Gas_Controls_Base_Emitter.SpawnScript_1 is in sync even though AreScriptAndSourceSynchronized returned false!
LogNiagara: Warning: For some reason we are reporting that /Game/ShootGun/Emitters/NS_ImpactSmoke.NS_ImpactSmoke:Grid3D_Gas_Controls_Base_Emitter.UpdateScript_2 is in sync even though AreScriptAndSourceSynchronized returned false!
LogNiagara: Warning: For some reason we are reporting that /Game/ShootGun/Emitters/NS_ImpactSmoke.NS_ImpactSmoke:Grid3D_Gas_Controls_Base_Emitter.NiagaraSimulationStageGeneric_13.SimulationStage_0 is in sync even though AreScriptAndSourceSynchronized returned false!
LogNiagara: Warning: For some reason we are reporting that /Game/ShootGun/Emitters/NS_ImpactSmoke.NS_ImpactSmoke:Grid3D_Gas_Controls_Base_Emitter.NiagaraSimulationStageGeneric_14.SimulationStage_0 is in sync even though AreScriptAndSourceSynchronized returned false!
LogNiagara: Warning: For some reason we are reporting that /Game/ShootGun/Emitters/NS_ImpactSmoke.NS_ImpactSmoke:Grid3D_Gas_Controls_Base_Emitter.NiagaraSimulationStageGeneric_15.SimulationStage_0 is in sync even though AreScriptAndSourceSynchronized returned false!
LogNiagara: Warning: For some reason we are reporting that /Game/ShootGun/Emitters/NS_ImpactSmoke.NS_ImpactSmoke:Grid3D_Gas_Controls_Base_Emitter.NiagaraSimulationStageGeneric_16.SimulationStage_0 is in sync even though AreScriptAndSourceSynchronized returned false!
LogNiagara: Warning: For some reason we are reporting that /Game/ShootGun/Emitters/NS_ImpactSmoke.NS_ImpactSmoke:Grid3D_Gas_Controls_Base_Emitter.NiagaraSimulationStageGeneric_17.SimulationStage_0 is in sync even though AreScriptAndSourceSynchronized returned false!
LogNiagara: Warning: For some reason we are reporting that /Game/ShootGun/Emitters/NS_ImpactSmoke.NS_ImpactSmoke:Grid3D_Gas_Controls_Base_Emitter.NiagaraSimulationStageGeneric_18.SimulationStage_0 is in sync even though AreScriptAndSourceSynchronized returned false!
LogNiagara: Warning: For some reason we are reporting that /Game/ShootGun/Emitters/NS_ImpactSmoke.NS_ImpactSmoke:Grid3D_Gas_Controls_Base_Emitter.NiagaraSimulationStageGeneric_19.SimulationStage_0 is in sync even though AreScriptAndSourceSynchronized returned false!
LogNiagara: Warning: For some reason we are reporting that /Game/ShootGun/Emitters/NS_ImpactSmoke.NS_ImpactSmoke:Grid3D_Gas_Controls_Base_Emitter.NiagaraSimulationStageGeneric_20.SimulationStage_0 is in sync even though AreScriptAndSourceSynchronized returned false!
LogNiagara: Warning: For some reason we are reporting that /Game/ShootGun/Emitters/NS_ImpactSmoke.NS_ImpactSmoke:Grid3D_Gas_Controls_Base_Emitter.NiagaraSimulationStageGeneric_21.SimulationStage_0 is in sync even though AreScriptAndSourceSynchronized returned false!
LogNiagara: Warning: For some reason we are reporting that /Game/ShootGun/Emitters/NS_ImpactSmoke.NS_ImpactSmoke:Grid3D_Gas_Controls_Base_Emitter.NiagaraSimulationStageGeneric_22.SimulationStage_0 is in sync even though AreScriptAndSourceSynchronized returned false!
LogNiagara: Warning: For some reason we are reporting that /Game/ShootGun/Emitters/NS_ImpactSmoke.NS_ImpactSmoke:Grid3D_Gas_Controls_Base_Emitter.NiagaraSimulationStageGeneric_23.SimulationStage_0 is in sync even though AreScriptAndSourceSynchronized returned false!
LogNiagara: Warning: For some reason we are reporting that /Game/ShootGun/Emitters/NS_ImpactSmoke.NS_ImpactSmoke:Grid3D_Gas_Controls_Base_Emitter.NiagaraSimulationStageGeneric_24.SimulationStage_1 is in sync even though AreScriptAndSourceSynchronized returned false!
LogNiagara: Warning: For some reason we are reporting that /Game/ShootGun/Emitters/NS_ImpactSmoke.NS_ImpactSmoke:Grid3D_Gas_Controls_Base_Emitter.NiagaraSimulationStageGeneric_25.SimulationStage_0 is in sync even though AreScriptAndSourceSynchronized returned false!
LogNiagara: Warning: For some reason we are reporting that /Game/ShootGun/Emitters/NS_ImpactSmoke.NS_ImpactSmoke:Grid3D_Gas_Controls_Base_Emitter.NiagaraSimulationStageGeneric_27.SimulationStage_0 is in sync even though AreScriptAndSourceSynchronized returned false!
LogNiagara: Warning: For some reason we are reporting that /Game/ShootGun/Emitters/NS_ImpactSmoke.NS_ImpactSmoke:Grid3D_Gas_Controls_Base_Emitter.GPUComputeScript_5 is in sync even though AreScriptAndSourceSynchronized returned false!
LogNiagara: Warning: For some reason we are reporting that /Game/ShootGun/Emitters/NS_ImpactSmoke.NS_ImpactSmoke:SystemSpawnScript is in sync even though AreScriptAndSourceSynchronized returned false!
LogNiagara: Warning: For some reason we are reporting that /Game/ShootGun/Emitters/NS_ImpactSmoke.NS_ImpactSmoke:SystemUpdateScript is in sync even though AreScriptAndSourceSynchronized returned false!

If I attempt to open the newly created system, the editor freezes before dumping a ton of errors in the log and crashing.

Any idea what’s going on? I’m using 5.0.3 self compiled.