Log

[MONO] * Assertion at D:/a/_work/1/s/src/mono/mono/mini/interp/transform.c:9055, condition `<disabled>' not met

Or locally I also saw

Assertion: should not be reached at C:/Dev/runtime/src/mono/mono/mini/interp/transform.c:347

This is test in src\mono\wasm\Wasm.Build.Tests\Blazor\SimpleMultiThreadedTests.cs

• Release & multi-threading build of the runtime
• publish Blazor app with <WasmEnableThreads>true</WasmEnableThreads>
• Debug version of the app, no AOT.
• So far we only saw it fail on Windows. Both FF and chrome.
• Re-link with symbols hides/solves the problem.

Stack trace doesn't help

We know this is trying to load assembly Microsoft.AspNetCore.Components.WebAssembly