AssertNoQueuedManagedDeferredCommands | Official Unity Discord | Page 1

earnest fossil Jan 19, 2026, 10:55 AM

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I've had a strange error start popping up today. Not seen this before, and there haven't been any major changes to the game in the last few days. Either I've done something subtly wrong or something has built up to the point it all breaks.

Unity.Entities.EntityComponentStore.AssertNoQueuedManagedDeferredCommands () (at ./Library/PackageCache/com.unity.entities@e581b903be8e/Unity.Entities/EntityComponentStore.cs:3015)

Can't find anything useful in the docs, and the comment in the code suggests this may be some internal entity system bug?

Using Unity 6.0.59f1 with Entities 1.3.14

📎 message.txt

thorny musk Jan 19, 2026, 10:57 AM

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Clear the entities cache

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In preferences

proud mesa Jan 19, 2026, 10:58 AM

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Are you stuck on entities 1.3.x? (any reason you aren't updating to 1.4.x) always worth testing if updating fixes it

earnest fossil Jan 19, 2026, 10:59 AM

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thorny musk Clear the entities cache

No change

thorny musk Jan 19, 2026, 11:00 AM

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earnest fossil No change

I have encountered this error, it is not specific, if you clear something there, it will disappear

earnest fossil Jan 19, 2026, 11:00 AM

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proud mesa Are you stuck on entities 1.3.x? (any reason you aren't updating to 1.4.x) alway...

I tried updating to 1.4 a while ago and some things broke, and at the time we were near a delivery date so it didn't seem like a good time. Maybe this is a good excuse.

earnest fossil Jan 19, 2026, 4:21 PM

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OK, after several obstacles I am now on Unity 6.0.62f1 and Entities 1.4.0-pre.3, due to this bug in any more recent version:

https://issuetracker.unity3d.com/issues/editor-is-not-able-to-load-when-using-nuget-dll-plugins-and-scripting-define-symbol-disable-typemanager-ilpp

Still the same issue.

Unity IssueTracker - Editor is not able to load when using NuGet DL...

How to reproduce:1. Open the attached project “Sept04.zip“2. Observe the result Expected result: The Editor launchesActual result: U...

earnest fossil Jan 21, 2026, 11:47 AM

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In case anyone needs this info later - the bug was caused by temporary memory allocations inside a loop while iterating over entities.

formal oasis Jan 21, 2026, 2:48 PM

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earnest fossil In case anyone needs this info later - the bug was caused by temporary memory al...

Do you mind providing a reproducible code? Without it the caution is not understandable.

earnest fossil Jan 26, 2026, 3:09 PM

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I'm afraid this is a commercial project so I can't send you the actual source. Would pseudocode be helpful?

thorny musk Jan 26, 2026, 3:51 PM

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earnest fossil I'm afraid this is a commercial project so I can't send you the actual source. W...

If this error appears from the Burst compiled code, then you can simply disable Burst by unchecking the box and get a more detailed error

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Oh, there are managed components

#AssertNoQueuedManagedDeferredCommands