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Bug Very sluggish editor after importing an asset

Discussion in 'Editor & General Support' started by arkano22, Apr 20, 2022.

  1. arkano22


    Sep 20, 2012
    [DUPLICATE THREAD, please delete]. The original one can be found here:

    Hi there,

    I'm an asset publisher, I sell several assets in the Asset Store. One of my users recently brought to my attention a very strange behavior when importing one of my assets (which is a physics add-on, so mainly C# scripts).

    Immediately after importing the asset (no need to actually play a scene), the editor starts to behave in an unresponsive and sluggish way. Using the editor profiler reveals there's some kind of enumeration over +20000 elements happening every frame, amounting for 50 ms/frame even on empty scenes.

    The stack trace is:
    - Application.Tick()
    - Application.TickGlobalCallbacks()
    - EditorAppliaction.Internal_Invoke()
    - <Module>.Invoke_void()
    - BaseAsyncIEnumerableHandler.OnUpdate()
    - BaseAsyncIEnumerableHandler.FetchSome()
    - SearchEnumerator.NextItem()

    The user has only been able to reproduce this in Unity 2021.2.17f1 and above, I haven't been able to reproduce it in *any* Unity version.

    I've instructed the user in question to report this as a bug and send a repro project, but I'd still like to ask here: Any idea what might be causing this? Does anyone have encountered this before?

    Last edited: Apr 20, 2022