Steps to reproduce:
1. Open the attached project "Case_1279352"
2. Open "SampleScene" Scene
3. In the Project Settings->Editor set Unity Remote Device to the device that's plugged in
4. Connect an Android device via USB
5. Open Unity Remote 5
6. In the Unity Editor enter Play mode
7. On the Android device click and drag a colored stick around the scene

Expected results: Unity Editor Console output "Dragged"
Actual results: No console output (OnDrop is not called)

Reproducible with: 2019.4.11f1, 2020.1.7f1, 2020.2.0b4

Reproducible with:
VLNQA00220, Samsung Galaxy Note9 (SM-N960F), Android 8.1.0, CPU: Exynos 9 Series 9810, GPU: Mali-G72
VLNQA00123, Google Pixel 2 XL (Pixel 2 XL), Android R, CPU: Snapdragon 835 MSM8998, GPU: Adreno (TM) 540
----------, Samsung Galaxy S20+ 5G (SM-G986B), Android 10, CPU: NOT FOUND, GPU: Mali-G77
iPad Air 2 (iOS 11.0.3)
iPhone 8+ (iOS 12.0)
iPhone XR (iOS 13.4.1)
iPad 9.7’ 6th gen (iOS 14.2)

Unable to test with: 2018.4.27f1(project breaking)