Attaching a remote debugger to cloud debugger from IntelliJ fails

[context from stack overflow](https://stackoverflow.com/questions/70872681/attach-remote-debugger-to-cloud-run-from-intellij)

>I have an app running on Cloud Run and I'm trying to debug remotely using Intellij and the Cloud Code plugin. The java agent is > running and I'm able to create snapshots on the GCP Debugger, but Intellij won't attach to the remote code. It shows my > project and target properly but gives me this warning and nothing happens if I click on "Attach Anyway".
>
> [debug](https://i.stack.imgur.com/e16ez.png)
>
> Obs: I'm using Kotlin. Could this be the problem?

We will investigate this on our end using a sample Kotlin app