Gaze Interaction button click not working with Eye Gaze

[joncamp]

Describe the bug

Unable to click the button in the Gaze Interaction sample page, even though the app is properly picking up eye tracking data.

• [X] Is this bug a regression in the toolkit? If so, what toolkit version did you last see it work: v4 worked as I recall

Steps to Reproduce

Steps to reproduce the behavior:

1. With HID Enabled eye tracker connected and working, navigate to Gaze interaction page
2. Gaze over the gaze enabled button

Expected behavior

Button clicks, with status bar below button showing various timing and step progression

Screenshots

Environment

NuGet Package(s):

Package Version(s):

Windows 10 Build Number:

• [ ] Fall Creators Update (16299)
• [ ] April 2018 Update (17134)
• [ ] October 2018 Update (17763)
• [ ] May 2019 Update (18362)
• [X] May 2020 Update (19041)
• [ ] Insider Build (build number: )

App min and target version:

• [ ] Fall Creators Update (16299)
• [ ] April 2018 Update (17134)
• [ ] October 2018 Update (17763)
• [ ] May 2019 Update (18362)
• [X] May 2020 Update (19041)
• [ ] Insider Build (xxxxx)

Device form factor:

• [X] Desktop
• [ ] Xbox
• [ ] Surface Hub
• [ ] IoT

Visual Studio

• [ ] 2017 (version: )
• [X] 2019 (version: )
• [ ] 2019 Preview (version: )

## Additional context
Add any other context about the problem here.

[Kyaa-dost]

@joncamp Thanks for highlighting the issue. Assuming @peteams will be working on this issue, please let us know if you have any questions 😊

[joncamp]

@Kyaa-dost - yes, @peteams would be the one on our side. Seems like there was a UI framework change at some point in the sample app which broke something. The gaze interaction library itself seems to be working, so the issue is specific to the sample app.

[michael-hawker]

Not sure how I missed seeing this issue, this is resolved and working in the move to C# done in the PR here: #3427.

[michael-hawker]

@azchohfi assuming you tested in release mode as well? I think I may have been in Debug only, so I suppose it could be related to that too?

[Kyaa-dost]

Closing this as this was resolved #3427