Editor memory leak? Crashes with: missing the class attribute 'ExtensionOfNativeClass'!

[a7321492391284]

Hey y'all,

I've been running into some Unity crashes lately, after adding this plugin.. so far I have yet to find a reliable reproduction..

Basically what happens then is Unity loads for a while, while memory usage grows until macOS decides or asks to kill the app due to being out of memory.
I'm running Unity 2020.2.5f1.

It happens when I enter playmode, most often, but not only, when I have the Behavior Designer Window open, work on a behavior (auto-save is on), and then switch to playmode.

I think the important logs are the following (but I can also provide full logs if required):
Reloading assemblies for play mode. Begin MonoManager ReloadAssembly 'BehaviorDesigner.Runtime.ExternalBehaviorTree' is missing the class attribute 'ExtensionOfNativeClass'! 'BehaviorDesigner.Runtime.BehaviorTree' is missing the class attribute 'ExtensionOfNativeClass'! 'BehaviorDesigner.Runtime.ExternalBehaviorTree' is missing the class attribute 'ExtensionOfNativeClass'!

Anyone has any idea why this happens or how to prevent it?

Thanks in advance!

Edit: On second note, maybe this should've went to the Bug Report subforum?
Edit2: I'm using version 1.6.7. Is there a version.txt somewhere? I had to check which version it was via the Asset Store.. maybe a good idea to include one?

 

[Justin]

Did you change any of the Behavior Designer classes? I haven't seen that warning before but it looks related to when you make a change to the base class:

ExtensionOfNativeClass attribute missing error in Unity 2018.3

After installing Unity 2018.3 and opening project that was created with Unity 2017 I’m getting “missing ExtensionOfNativeClass attribute” error in Unity console window for one of the classes in the project. Project builds without error in Visual Studio 2017. Anyone has an idea what might be...

answers.unity.com

If you can tell me how to reproduce it in a fresh project I can take a look.