[BUG] InternalServerError when using script

Type of Connector

Custom Connector

Name of Connector

Any (in development)

Describe the bug

When developing a connector and using custom scripting, operations frequently fail with an InternalServerError message and no further details.

This even happens for a trivial script that just forwards the request:

public class Script : ScriptBase
{
    public override async Task<HttpResponseMessage> ExecuteAsync()
    {
        HttpResponseMessage response = await this.Context.SendAsync(this.Context.Request, this.CancellationToken).ConfigureAwait(continueOnCapturedContext: false);
        return response;
    }
}

It tends to happen more often for "cold starts" - a second request tends to succeed.

Is this a security bug?

No, this is not a security bug

What is the severity of this bug?

Severity 2 - One or more important connector features are down

To Reproduce

Create a custom connector and enable a custom script (such as the one in the description above). Test/run it as part of an "Instant Cloud Flow."

Expected behavior

The connector should work each time, with no InternalServerErrror.

Environment summary

paconn --version
0.0.20

Additional context

The specifics of the API definition and script content don't seem to matter.

Start by reproducing the custom connector script in an Instant Cloud Flow with paconn 0.0.20, comparing cold-start and subsequent requests. No repository files or tests are identified; done means the trivial forwarding script completes consistently without InternalServerError.