Crash on dynCall_iii when building for WebGL

How to reproduce:
1. Open the attached project from "case1342472webglbuild.zip"
2. Build and Run the project for WebGL
3. Observe the errors in the Build

Reproducible with: 2020.3.13f1
Not reproducible with: 2021.1.14f1
Couldn't test with: 2018.4.36f1, 2019.4.28f1, 2021.1.12f1, 2021.2.0b1 (Various errors between different versions)

First lines of stack trace:
at jsStackTrace (http://localhost:63937/Build/b1.framework.js.gz:2:16334)
at stackTrace (http://localhost:63937/Build/b1.framework.js.gz:2:16505)
at abort (http://localhost:63937/Build/b1.framework.js.gz:2:748)
at http://localhost:63937/Build/b1.wasm.gz:wasm-function[76129]:0x15394b9
at http://localhost:63937/Build/b1.wasm.gz:wasm-function[25222]:0xa2629e
at http://localhost:63937/Build/b1.wasm.gz:wasm-function[41686]:0xd7cbb7
at dynCall_iii (http://localhost:63937/Build/b1.wasm.gz:wasm-function[75991]:0x15388c5)
at Object.dynCall_iii (http://localhost:63937/Build/b1.framework.js.gz:2:478102)
at invoke_iii (http://localhost:63937/Build/b1.framework.js.gz:2:337454)

Note:
1. No errors in Editor, only in the Build