I cannot use the slider properly on one of my songs, which is 53 minutes long. The song plays correctly, but the total duration appears as 1:53 and the slider behaves accordingly. The elapsed time shows correctly.
This is an mp3 file, 49 MB. Spotify version 0.5.9.29. I am syncing the file from Windows and Linux, and the behavoir is not different between the two. I am using android 4.02.651.2 710RD.