Seek in RTSP stream failed

[dom16]

OS: KUbuntu 14.04.1. VLC versions: 2.1.4 (from repository)/2.2.0rc2 (from djcj PPA)

Start a new RTSP stream like that:

vlc -vvv /data/rammstein.mkv --sout '#rtp{dst=192.168.0.12,port=1234,sdp=rtsp://127.0.0.1:8080/test.sdp}'

Open it with another VLC instance:

vlc -vvv rtsp://localhost:8080/test.sdp

VLC opens the stream OK. Try to seek. Result: nothing happens. In CLI (client side) I see "[0xac300508] main input error: INPUT_CONTROL_SET_POSITION(_OFFSET) 27.2% failed"

Server log: http://pastebin.com/KvSymWYS
Client log: http://pastebin.com/1ZNhaF65

Any ideas?