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

[walterlv]

• .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

Expected behavior:

WPF works without touch lost.

Minimal repro:

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