[Milhouse]

Here is the debug log: http://xbmclogs.com/phe3yzmbp

So it looks like you're caching ALL, but you're playing a local strm file which I'm assuming used to be cached, but now isn't. Hopefully @arnova might be able to confirm the expected behaviour or explain the change.

Don't know how to create a screenshot, because I have no keyboard. But what I can see in the CodecOSD is that "forward" stays at 0. IMHO that means that no buffering takes place.

You don't need a keyboard attached, an ssh session will do - you can take a screenshot with "texturecache.py screenshot" then upload the latest image in the Screenshots folder to imgur.com.