Windows 10: desktop touch issue

[VegaDI]

Hi

We are currently testing our applications on Windows 10 preview builds. We discovered a problem with Windows desktop applications when it comes to touch.

When executing a certain order of touches (see below), touch points get stuck in the ‘touch move’ state. The most likely reason is that the ‘touch up’ events are not registered. But it might as well be an issue in the IDs of the touch points.

To create the issue, the following actions are performed:
Touch with finger 1. Keep this finger on the screen. Touch with a number of other fingers. Keep these on the screen. Release finger 1. Touch again with finger 1. From this moment, the touch points connected to the other fingers will be stuck in the ‘touch move’ state.
Here is a movie to show the above action:
https://youtu.be/A0ayJlq-rxQ

Is this issue already known at Adobe?
Are there other people experiencing this issue?
Is there a workaround?

Additional info:
The problem only happens on Windows 10. Lower Windows versions don’t have this issue.
We have Unity based desktop applications which have the same issue. The Windows 8 Store App builds of the Unity apps don’t have the issue. Indicating the problem might be originating from the Windows 10 desktop.

A simple WPF multi touch test application (for desktop) does NOT have the problem.

Sincerely,

Jens Wouters
Developer at Omnivision Studios

[chris.campbell]

Hi Jens,

Thank you for the heads up and the video, that makes the issue very easy to understand.  If you haven't already, could you please open a bug report on this over at https://bugbase.adobe.com and include a copy of your sample application/project along with information on which Win 10 build is being used.  Once added, please let me know the bug number and I'll ask the team to take a look right away.

Thanks,

Chris

[VegaDI]

Hi Chris

I created the bug report. The number is 3985904.

Thanks,
Jens

Bug 3985904

Bug 3985904

Bug 3985904

[stefanvdheijden]

Any News on this issue, since we are still struggling with this issue.

Anyone have a similar problem or anyone who has no problems with touch icw windows 10?

[VegaDI · Accepted solution]

We are happy to report the touch issue for the desktop in Windows 10 has been fixed.

We tested on Windows 10 Home Insider Preview Build 10163 and the issue doesn't occur anymore.