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NZBGet incorrectly downloading NZB files sent via Prowlarr #737

@neoKushan

Description

@neoKushan

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NZBGet Version

v26.0-stable

Platform

Linux/Docker

Environment

OS: TrueNAS 25.10.1 - Goldeye 
CPU Arch: x86
Running in Docker: Yes
Docker image: nzbgetcom/nzbget:v26.0

Current Behavior

When sending over a file via Prowlarr (For example by making a search and clicking the save button), for some providers NZBGet is downloading the nzb file incorrectly and skipping the download entirely.

E.G. For the provider "NZBPlanet", the entry immediately goes into "history" with a status of "Skipped".

The name will be something like "api.nzbplanet.net/getnzb/81a6a1b19639ad20b7a3531020295c0f.nzb&i=375221&r=apikey"
and the file will be something like "https://api.nzbplanet.net/getnzb/81a6a1b19639ad20b7a3531020295c0f.nzb&i=375221&r=apikey"

The logs for this don't show much:

Mon Feb 16 2026 00:10:42	INFO	Reordering files for api.nzbplanet.net/getnzb/81a6a1b19639ad20b7a3531020295c0f.nzb&i=375221&r=apikey
Mon Feb 16 2026 00:10:42	INFO	Collection api.nzbplanet.net/getnzb/81a6a1b19639ad20b7a3531020295c0f.nzb&i=375221&r=apikey  added to history

The actual downloaded file (in the nzb folder) is something like '81a6a1b19639ad20b7a3531020295c0f.nzb&i=375221&r=apikey' and when I look inside, it seems to be the HTML of the login page of NZBPlanet.

I'm not entirely sure if Prowlarr is incorrectly sending over the download request or if NZBGet is incorrectly parsing it. However, the same request sent to Sabnzbd does work correctly.

Note: I have removed the API Key from all of the above and replaced with "apikey" for security reasons.

Expected Behavior

The expected behaviour is that NZBGet downloads the .nzb file correctly.

Steps To Reproduce

  1. Configure NZBPlanet as an indexer in Prowlarr
  2. Configure NZBGet as a download client in Prowlarr
  3. Perform a search that returns results from NZBPlanet
  4. Pick a result and press the "Add release to download client" on the far right of the search results.

Logs

Mon Feb 16 2026 00:10:42 INFO Reordering files for api.nzbplanet.net/getnzb/81a6a1b19639ad20b7a3531020295c0f.nzb&i=375221&r=apikey
Mon Feb 16 2026 00:10:42 INFO Collection api.nzbplanet.net/getnzb/81a6a1b19639ad20b7a3531020295c0f.nzb&i=375221&r=apikey added to history

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