Reproduction steps:
1. Open project "new project.zip"
2. Open Scene "SampleScene"
3. Open Build Settings in File > Build Settings
4. Select Platform "Universal Windows Platform" and build project
5. Open solution of built project
6. Change solution configuration from "Debug" to "Release" and set solution platform to ARM64
7. Open the Holographic Remoting Player app on the Hololens 2
8. Copy the IP Address
9. Open Properties in Project > Properties
10. Select Debugging under Configuration Properties
11. Type the IP address in Machine Name
12. Build on Remote Machine
13. Select the Input Field
14. Press the keyboard cancel button shaped like an "X" in the Hololens 2
15. Observe Log Events

Expected result: Event onEndEdit is fired
Actual result: Event onSubmit is fired

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)