Reproduction steps:
1. Open the user's attached project "Racing.zip"
2. Build And Run on Android

Expected result: Build works with no issues
Actual result: Build crashes

Reproducible with: 2021.1.20f1
Could not test with: 2019.4.30f1, 2020.3.18f1, 2021.2.0b12, 2022.1.0a9 (Due to errors when upgrading/downgrading the project) ("Exception: OBSOLETE")

First lines of the stracktrace:
08/26 00:51:12.939 16046 16071 Error AndroidRuntime #00 pc 00000000000687a8 /system/lib64/libc.so (pthread_mutex_lock) (BuildId: ff3fe0498c71765418437bcf4d102967)
08/26 00:51:12.939 16046 16071 Error AndroidRuntime #01 pc 000000000004584c /system/lib64/libc.so (dlmalloc+380) (BuildId: ff3fe0498c71765418437bcf4d102967)
08/26 00:51:12.939 16046 16071 Error AndroidRuntime #02 pc 0000000000047b5c /system/lib64/libc.so (dlcalloc+40) (BuildId: ff3fe0498c71765418437bcf4d102967)
08/26 00:51:12.939 16046 16071 Error AndroidRuntime #03 pc 0000000000019588 /system/lib64/libc.so (calloc+20) (BuildId: ff3fe0498c71765418437bcf4d102967)
08/26 00:51:12.939 16046 16071 Error AndroidRuntime #04 pc 000000000079c850 /data/app/com.beermoneygames.race-1/lib/arm64/libil2cpp.so (BuildId: f87d2a837ab3071e3c41e02b64ed5a8f39536711)

Reproducible with these devices:
N/A, Samsung Galaxy S9 (SM-G960F), Android 8.0.0, CPU: Exynos 9 Series 9810, GPU: Mali-G72
VLNQA00002, Samsung S5 Neo LTE (SM-G903F), Android 6.0.1, CPU: Exynos 7 Octa 7580, GPU: Mali-T720
VLNQA00318, Oneplus 7Pro (GM1913), Android 10, CPU: Snapdragon 855 SM8150, GPU: Adreno (TM) 640
VLNQA00231, Huawei HUAWEI Mate 20 Pro (LYA-L29), Android 9, CPU: HiSilicon Kirin 980, GPU: Mali-G76
VLNQA00110, Samsung Galaxy Note2 (GT-N7100), Android 4.4.2, CPU: Exynos 4 Quad 4412, GPU: Mali-400 MP
N/A, 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

Not reproducible with these devices:
iPhone 8 Plus (iOS 14.4.2)
iPad 6th generation (iOS 14.4.2)
iPad Air 2 (iOS 11.0.3)

Notes:
-The issue reproduces with the "Development Build" setting turned on and off
-The issue happens when both ARMv7 and ARM64 are selected in the build settings, after removing the ARMv7 support, there were no issues