dotnet / dotnet/wpf

WPF applications stop responding to touches after adding or removing tablet devices

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.NET Framework Bug
Dominant language
C#
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Description

* .NET Core Version: 3.0 Preview1
* Windows version: (`Windows 10 all versions / 7 SP1`)
* Does the bug reproduce also in WPF for .NET Framework 4.8?: Yes

**Problem description:**

Run any WPF application on a computer which is currently has a high CPU usage, if you keep plugging and unplugging a USB HID tablet device at the same time, the WPF applications will stop responding to touches and only respond to mouse.

**Actual behavior:**

[c# - WPF applications stop responding to touches after adding or removing tablet devices - Stack Overflow](https://stackoverflow.com/questions/51854593/wpf-applications-stop-responding-to-touches-after-adding-or-removing-tablet-devi)

**Expected behavior:**

WPF works without touch lost.

**Minimal repro:**

1. Run any WPF application
1. Keep plugging and unplugging a USB HID tablet device
1. Make a high CPU usage

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Assessment

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