Issue with retrying failed downloads

Hi
last night I wanted to download an episode of a new series but because the nzb hadn’t propagated yet the download failed. Normally nzbdrone should have retried the download but last night all i got was this error:
http://pastebin.com/Z3St3Npt
also in the logs of nzbget I can see that the download was never retried.
I use nzbdrone with mono 3.6 and nzbget 14.0-r1137 as a download client

I hope this problem can be fixed because I really like nzbdrone

Edit:additional information

I believe this issue is already fixed in develop. Without line numbers (available when mono is running with the --debug switch) I can’t confirm.

thank you for the quick reply. Is it possible to deactivate the retrying for the time being? Since I dont have ssh access to my debian box at the moment but I could use the propagation delay option of nzbget till the update comes out.

Yes, advanced setting on download client settings, just set the retry to zero.