Reproduction steps:
1. Open the attached project "1376559_repro.zip"
2. Build and Run on an Android device
3. Press the "Show Rewarded Video" button on the screen

Expected result: A video ad starts playing
Actual result: A video ad does not start playing

Reproducible with: 2021.2.0b4, 2021.2.2f1, 2022.1.0a14
Not reproducible with: 2019.4.32f1, 2020.3.22f1, 2021.1.28f1
Could not test with: 2021.2.0b3

Reproduced with these devices:
----------, Huawei - (ELS-NX9), Android 10, CPU: NOT FOUND, GPU: Mali-G76
VLNQA00264, Samsung Galaxy S10+ (SM-G975F), Android 10, CPU: NOT FOUND, GPU: Mali-G76
VLNQA00078, Motorola Nexus 6 (Nexus 6), Android 7.1.1, CPU: Snapdragon 805 APQ8084AB, GPU: Adreno (TM) 420
VLNQA00176, Xiaomi Redmi 4 (Redmi 4), Android 6.0.1, CPU: Snapdragon 430 MSM8937, GPU: Adreno (TM) 505
----------, Samsung - (SM-G991U), Android 11, CPU: Snapdragon 888, GPU: Adreno (TM) 660
VLNQA00391, Xiaomi Redmi 9A (M2006C3LG), Android 10, CPU: MediaTek Helio G25 (MT6762G), GPU: PowerVR Rogue GE8320
----------, Oppo Reno Z 中国版 (PCDM10), Android 11, CPU: NOT FOUND, GPU: PowerVR Rogue GM9446
VLNQA00335, Samsung Galaxy S20+ 5G (SM-G986B), Android 10, CPU: Exynos 990, GPU: Mali-G77

Could not test with these devices:
VLNQA00313, Huawei Y6 Ⅱ Compact (HUAWEI LYO-L01), Android 5.1, CPU: MediaTek MT6735, GPU: Mali-T720 (The UI was not loaded)

Notes:
-Errors are displayed in the Android Logcat when the button is pressed
-Could not test the issue from 2021.2.0b3 and lower because of a specific error (Image attached)
-Reproducible with Mono and IL2CPP
-Dragging the android-bridge.jar to Assets/Plugins/Android results in the issue not occurring