Hello. I am using Unreal Engine 5.3.2 and since a week ago my engine crashes sometimes whenever I press play. Rarely it succeeds without me doing anything but most of the times it crashes without any crash reports.
[2023.11.11-11.47.48:806][305]LogLoad: Game class is ‘BP_GameModeHorror_C’
Hey there @xx_pooya_xx ! Seems like something is going on with particles that have collision based on this first line in that error. Could you try disabling the particle systems in scene (or just their collision for the moment) and see if that’s the case. This would likely give us some information on if the errors are misleading or not.
I just did that. Deactivated the emitters and still the same log…
[2023.11.12-07.40.11:058][157]LogOutputDevice: Error: === Handled ensure: ===
apparently I just did “try to adjust location But Dont Spawn If still Colliding” on Spawn Collision Handling Method and it worked. It’s a weird thing…
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@SupportiveEntity Same thing again is happening actually that was a thing that happened for no reason. The same error is there…
Ahhhh so it’s now occurring again in a scene without the particles systems? Is the error the same referencing particle collision?
Yes. But I CTRL+A all of the actors in the scene and did the same setting and it works now
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Ahh so it’s more than likely there was another instance of something spawning inside the particles or vice versa.
Probably. The error keeps re-apperaing tho. It happened again even with all the previous stuff mentioned…
I still get this error…
[2023.11.15-06.35.07:888][626]LogOutputDevice: Error: === Handled ensure: ===
Oh this is going to be a fun one. So I’ve begun digging into the source code and it seems to be failing a set of operations that occur during the collision of particles.
Slowly walking up the tree there’s some complex particle jazz going on but here’s where it ends. Basically it’s failing to make a mid phase particle. Reading through it’s not clear what would cause this however. It’s quite possibly a bug with the current configuration of one of your particle systems.
// If we get here we have a Union of Unions, but that means we should have created
// a FGenericParticlePairMidPhase. See CalculateMidPhaseType
If you can replicate it in fresh projects, I’d say it’s probably best to submit a bug report. Otherwise you may need to rebuild the offending particle system.
I actually fixed the problem by putting my physics objects on the ground since physics in games consumes a lot of memory. I made sure I stabilized all my physics actors and then ran the project and now it’s okay.
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system
December 18, 2023, 3:21pm
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