Serviio

So I got round to upgrading Serviio last night and realised this morning that I've broken it.

Although the TV can see the server, browse the folders, view the film screenshot and attempt playback it fails with a "Temporarily can not access the server. Please retry".
I'm assuming that this is a FFMPEG issue?

The log itself looks like this:-

2014-02-21 09:03:37,894 ERROR [ResourceTransportRequestHandler] Error while processing resource, sending back 500 error. Message: Transcoded file 'C:\Windows\TEMP\Serviio\transcoding-temp-11648-sony2010-ORIGINAL.stf' cannot be found, FFmpeg execution probably failed
java.io.IOException: Transcoded file 'C:\Windows\TEMP\Serviio\transcoding-temp-11648-sony2010-ORIGINAL.stf' cannot be found, FFmpeg execution probably failed
at org.serviio.delivery.resource.transcode.FileBasedTranscodingDeliveryStrategy.createInputStream(FileBasedTranscodingDeliveryStrategy.java:47)
at org.serviio.delivery.resource.transcode.AbstractTranscodingDeliveryEngine.retrieveTranscodedResource(AbstractTranscodingDeliveryEngine.java:134)
at org.serviio.delivery.resource.AbstractDeliveryEngine.deliver(AbstractDeliveryEngine.java:110)
at org.serviio.delivery.MediaResourceRetrievalStrategy.retrieveResource(MediaResourceRetrievalStrategy.java:153)
at org.serviio.delivery.GETMethodProcessor.retrieveResource(GETMethodProcessor.java:121)
at org.serviio.delivery.GETMethodProcessor.buildDeliveryContainer(GETMethodProcessor.java:48)
at org.serviio.delivery.AbstractMethodProcessor.handleRequest(AbstractMethodProcessor.java:100)
at org.serviio.delivery.ResourceDeliveryProcessor.deliverContent(ResourceDeliveryProcessor.java:81)
at org.serviio.upnp.webserver.ResourceTransportRequestHandler.handleRequest(ResourceTransportRequestHandler.java:86)
at org.serviio.upnp.webserver.AbstractRequestHandler.handle(AbstractRequestHandler.java:61)
at org.apache.http.protocol.HttpService.doService(HttpService.java:293)
at org.serviio.upnp.webserver.ServiioHttpService.doService(ServiioHttpService.java:77)
at org.apache.http.protocol.HttpService.handleRequest(HttpService.java:212)
at org.serviio.upnp.webserver.WebServer$WorkerThread.run(WebServer.java:192)
2014-02-21 09:04:24,393 WARN [ProcessExecutor] Process cmd has a return code of 1! This is a possible error. Detailed output follows.
libavfilter 3. 77.101 / 3. 77.101
libswscale 2. 3.100 / 2. 3.100
libswresample 0. 17.102 / 0. 17.102
libpostproc 52. 3.100 / 52. 3.100

If it is FFMPEG what's the best way to replace the version Serviio is using? I'm assuming it's the one in C:\Program Files\Serviio\Lib..
Thanks

So I downloaded FFMPEG ( ffmpeg-20140221-git-76dd01e-win64-static) from Zeranoe and copied across ffmpeg.exe to my Serviio lib directory and restarted the server.

Same error.

Fixed

How? Elaborate please