# Crash details 'Active Thread'

The **Method** column contains a list of methods in the stack trace of the thread that caused your program to crash. Depending on the [platform](/introduction/getting-started/integrations.md) you may see methods that don't match your source code. This is because platforms such as [Windows Native](/introduction/getting-started/integrations/desktop/cplusplus.md), [.NET Framework](/introduction/getting-started/integrations/desktop/windows-dot-net-framework.md), [Crashpad](/introduction/getting-started/integrations/cross-platform/crashpad.md), [Breakpad](/introduction/getting-started/integrations/cross-platform/breakpad.md), [macOS](/introduction/getting-started/integrations/desktop/macos.md), [Unity](/introduction/getting-started/integrations/game-development/unity.md), and [Unreal](/introduction/getting-started/integrations/game-development/unreal-engine.md) require you to upload [symbols](/introduction/development/working-with-symbol-files.md) for each version you release in order to calculate the correct method names. For more information on how to upload symbols please see the documentation for your [platform](/introduction/getting-started/integrations.md).

![Crash Details ACtive Thread](/files/-MjBJL76q1meERhYJV0G)

Clicking the **>** (greater than symbol) in the left-most column will expand the **Row Details** view.

The **Row Details** view will display the **Create Group** button that will allow you to create a [Group](/introduction/development/grouping-crashes.md). Grouping at a different level of the call stack is useful in cases such as a crash that occurs in a 3rd party library, or when additional stack frames are added by a crash reporter.

Additionally, for [Windows Native](/introduction/getting-started/integrations/desktop/cplusplus.md) crashes the **Row Details** view will show a table of [Local Variables and Function Arguments](https://www.bugsplat.com/blog/development/local-variables-function-arguments/).

When you land on the crash details page, BugSplat starts a debugging session in the background that will calculate additional information about the crash. This additional information includes the call stacks for the non-active threads, register values, loaded modules, and function argument and local variable values. You will see a loading indicator when this information isn't yet available.


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