Refit rest api does not seem to work in release build (NullReferenceException)

[JelleDamen]

Since I've updated my android project to .net6-android I'm not able to execute rest calls with refit in release anymore. It's pretty hard to debug, since it's only happening in the release build of the app. This is the stacktrace from appcenter:

System.Net.Http.HttpClientHandler.SendAsync(HttpRequestMessage , CancellationToken )

System.NullReferenceException: Object reference not set to an instance of an object

System.Net.Http.HttpClientHandler.SendAsync(HttpRequestMessage , CancellationToken )
System.Net.Http.HttpMessageInvoker.SendAsync(HttpRequestMessage , CancellationToken )
System.Net.Http.HttpClient.<>n__0(HttpRequestMessage , CancellationToken )
System.Net.Http.HttpClient.<SendAsync>g__Core|83_0(HttpRequestMessage , HttpCompletionOption , CancellationTokenSource , Boolean , CancellationTokenSource , CancellationToken )
Refit.RequestBuilderImplementation.<>c__DisplayClass14_0`2.<<BuildCancellableTaskFuncForMethod>b__0>d[[PRO.Core.Models.AccessCodeResult, PRO.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null],[PRO.Core.Models.AccessCodeResult, PRO.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].MoveNext()
PRO.Core.Helpers.Execution.<retryWithApiResult>d__14`1[[PRO.Core.Models.AccessCodeResult, PRO.Core, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]].MoveNext()

I've think it's a linker issue, but I'm out of ideas to solve it. I also checked if HttpClient is the same in debug as in release (It's set to AndroidClientHandler).

Any ideas or suggestions I could try?

Thank you,

Jelle