Rhythmbox infinite loop fails

For a playlist with songs (wave files) the transition from on song to another fails often. Sometimes the loop stops at the end of a song. Sometimes the player continous at some random position in the next song.

In 12.10 this problem did not exist. After upgrading to 13.04 the problem started.

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: libgstreamer0.10-0 0.10.36-1ubuntu2
ProcVersionSignature: Ubuntu 3.8.0-19.29-generic 3.8.8
Uname: Linux 3.8.0-19-generic x86_64
ApportVersion: 2.9.2-0ubuntu8
Architecture: amd64
Date: Sun Apr 28 15:34:12 2013
InstallationDate: Installed on 2012-10-16 (194 days ago)
InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1)
MarkForUpload: True
ProcEnviron:
 TERM=xterm
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: gstreamer0.10
UpgradeStatus: Upgraded to raring on 2013-04-28 (0 days ago)