Reproduction steps:
1. Open “SampleScene” in the “new project.zip”
2. In Build Settings select “Universal Windows Platform” and build project
3. Open Visual Studio solution of built project
4. Change solution configuration from "Debug" to "Release" and set solution platform to ARM64
5. Open the Holographic Remoting Player app on the Hololens 2
6. Open Properties in Project > Properties in Visual Studio solution
7. Select Debugging under Configuration Properties
8. Copy the IP address from Hololens 2 and type the IP address in Machine Name on Visual Studio Solution
9. Build on Remote Machine
10. Select the Input Field
11. Press the keyboard cancel button shaped like an "X" and observe the log events in the Hololens 2

Expected result: wasCanceled callback is true
Actual result: wasCanceled is false

Reproducible with: 2.1.6 (2019.4.29f1), 3.0.6 (2020.3.17f1, 2021.1.18f1)
Could not test with: 2021.2.0b9, 2022.1.0a5 (Mixed Reality Toolkit Package causes errors)