Cannot force import with v2566 on Mono

When I try to force import an episode using the new reworked download handler, I get the following error

Message:
API Error: NotFound

Exception:

NzbDrone.Api.REST.NotFoundException: NotFound
at NzbDrone.Api.Queue.QueueActionModule.GetTrackedDownload (int) <0x000c3>
at NzbDrone.Api.Queue.QueueActionModule.Import () <0x00053>
at NzbDrone.Api.Queue.QueueActionModule.<.ctor>b__4 (object) <0x00018>
at (wrapper dynamic-method) object.CallSite.Target (System.Runtime.CompilerServices.Closure,System.Runtime.CompilerServices.CallSite,System.Func`2<object, object>,object) <0x000a7>
at Nancy.Routing.Route/<>c__DisplayClass4.<Wrap>b__3 (object,System.Threading.CancellationToken) <0x0016b>

This happens when I click on forced import.

This is happening on OSX, mono 3.4.0, sonarr v2566

I think this is fixed by upgrading to mono 3.10.0

We’re making some improvements in this area, at the moment there are a couple issues.