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Fixed in 2020.2.X

Fixed in 2019.4.X, 2020.1.X

Votes

1

Found in

2018.4

2019.4

2019.4.5f1

2020.1

2020.2

Issue ID

1268538

Regression

No

Crash on StackWalker::GetCurrentCallstack when calling GrammarRecognizer.Stop() after diconnecting a microphone

Windows

-

How to reproduce:
1. Open attached project "Case_1268538" and load Scene "TestVoiceRecognition"
2. Enter Play Mode
3. Plug a microphone into your machine, and then unplug it
4. If the crash does not occur, repeat step 3

Reproducible with: 2018.4.27f1, 2019.4.10f1, 2020.1.5f1, 2020.2.0b2

First lines of the stack trace:
0x00007ff765874fec (Unity) StackWalker::GetCurrentCallstack
0x00007ff765879c79 (Unity) StackWalker::ShowCallstack
0x00007ff766d25c3c (Unity) GetStacktrace
0x00007ff76587421c (Unity) winutils::CrashHandler::DefaultInvalidParameterHandler
0x00007ff768b358a6 (Unity) invalid_parameter
0x00007ff768b3591d (Unity) invalid_parameter_noinfo
0x00007ff768b3617f (Unity) common_vsprintf<__crt_stdio_output::standard_base,char>

Notes:
1. Usually crashes after 4-6 tries, although it can occur both earlier and later
2. In 2018.4.27f1 the Crash Handler starts loading, closes before finishing loading, and then throws an empty error in the console
3. In 2019.4.10f1 and 2020.1.5f1 crashes with no stack trace

  1. Resolution Note (fix version 2020.2):

    Fixed in 2021.1.0a4

  2. Resolution Note (fix version 2020.2):

    Fixed in 2020.2.0b12

  3. Resolution Note (fix version 2020.1):

    Fixed in 2020.1.14f1

  4. Resolution Note (fix version 2019.4):

    Fixed in 2019.4.18f1

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