diff --git a/server/core/helpers/requests.ts b/server/core/helpers/requests.ts
index dee90b9f8..6ea86df56 100644
--- a/server/core/helpers/requests.ts
+++ b/server/core/helpers/requests.ts
@@ -70,8 +70,7 @@ export const unsafeSSRFGot = got.extend({
             return
           }
 
-          // Stream
-          (promiseOrStream as any).destroy()
+          ;(promiseOrStream as any).destroy()
         }
       })
 
@@ -138,10 +137,12 @@ export function doRequest (url: string, options: PeerTubeRequestOptions & { prev
     : peertubeGot
 
   return gotInstance(url, gotOptions)
-    .catch(err => { throw buildRequestError(err) })
+    .catch(err => {
+      throw buildRequestError(err)
+    })
 }
 
-export function doJSONRequest <T> (url: string, options: PeerTubeRequestOptions & { preventSSRF?: false } = {}) {
+export function doJSONRequest<T> (url: string, options: PeerTubeRequestOptions & { preventSSRF?: false } = {}) {
   const gotOptions = buildGotOptions(options)
 
   const gotInstance = options.preventSSRF === false
@@ -149,7 +150,9 @@ export function doJSONRequest <T> (url: string, options: PeerTubeRequestOptions
     : peertubeGot
 
   return gotInstance<T>(url, { ...gotOptions, responseType: 'json' })
-    .catch(err => { throw buildRequestError(err) })
+    .catch(err => {
+      throw buildRequestError(err)
+    })
 }
 
 export async function doRequestAndSaveToFile (url: string, destPath: string, options: PeerTubeRequestOptions = {}) {
@@ -211,6 +214,26 @@ export function isBinaryResponse (result: Response<any>) {
   return BINARY_CONTENT_TYPES.has(result.headers['content-type'])
 }
 
+export function buildRequestError (error: RequestError) {
+  const newError: PeerTubeRequestError = new Error(error.message)
+  newError.name = error.name
+  newError.stack = error.stack
+
+  if (error.response) {
+    newError.responseBody = error.response.body
+    newError.responseHeaders = error.response.headers
+    newError.statusCode = error.response.statusCode
+  }
+
+  if (error.options) {
+    newError.requestHeaders = error.options.headers
+    newError.requestUrl = error.options.url
+    newError.requestMethod = error.options.method
+  }
+
+  return newError
+}
+
 // ---------------------------------------------------------------------------
 // Private
 // ---------------------------------------------------------------------------
@@ -251,26 +274,6 @@ function buildGotOptions (options: PeerTubeRequestOptions): OptionsOfUnknownResp
   }
 }
 
-function buildRequestError (error: RequestError) {
-  const newError: PeerTubeRequestError = new Error(error.message)
-  newError.name = error.name
-  newError.stack = error.stack
-
-  if (error.response) {
-    newError.responseBody = error.response.body
-    newError.responseHeaders = error.response.headers
-    newError.statusCode = error.response.statusCode
-  }
-
-  if (error.options) {
-    newError.requestHeaders = error.options.headers
-    newError.requestUrl = error.options.url
-    newError.requestMethod = error.options.method
-  }
-
-  return newError
-}
-
 function buildUrl (url: string | URL) {
   if (typeof url === 'string') {
     return new URL(url)
diff --git a/server/core/lib/video-file.ts b/server/core/lib/video-file.ts
index 365b69a0e..5a0e2f801 100644
--- a/server/core/lib/video-file.ts
+++ b/server/core/lib/video-file.ts
@@ -11,7 +11,7 @@ import { FileStorage, VideoFileFormatFlag, VideoFileMetadata, VideoFileStream, V
 import { getFileSize, getLowercaseExtension } from '@peertube/peertube-node-utils'
 import { getFFmpegCommandWrapperOptions } from '@server/helpers/ffmpeg/ffmpeg-options.js'
 import { logger, loggerTagsFactory } from '@server/helpers/logger.js'
-import { doRequestAndSaveToFile, generateRequestStream } from '@server/helpers/requests.js'
+import { buildRequestError, doRequestAndSaveToFile, generateRequestStream } from '@server/helpers/requests.js'
 import { CONFIG } from '@server/initializers/config.js'
 import { MIMETYPES, REQUEST_TIMEOUTS } from '@server/initializers/constants.js'
 import { VideoFileModel } from '@server/models/video/video-file.js'
@@ -324,9 +324,12 @@ export async function muxToMergeVideoFiles (options: {
 
       logger.warn(`Cannot mux files of video ${video.url}`, { err, inputs: inputsToLog, ...lTags(video.uuid) })
 
+      if (err.inputStreamError) {
+        err.inputStreamError = buildRequestError(err.inputStreamError)
+      }
+
       throw err
     }
-
   } finally {
     for (const destination of tmpDestinations) {
       await remove(destination)
@@ -338,7 +341,6 @@ async function buildMuxInput (
   video: MVideo,
   videoFile: MVideoFile
 ): Promise<{ input: Readable, isTmpDestination: false } | { input: string, isTmpDestination: boolean }> {
-
   // ---------------------------------------------------------------------------
   // Remote
   // ---------------------------------------------------------------------------