iphone lock screen display

[rei_linam]

When i am listening to music on my phone, and go to the lock screen, it shows that the music is playing, and i can hear it, yet the slider that shows how long i’ve been listening to a song/how long is left in the song, is frozen at the beginning. I have iOS 11 so this may have something to do with it but i don’t know for sure. Help!

[miukkumiu]

I think it has something to do with new iOs update. I can’t see nothing on my lock screen and also cannot control Spotify with headphones unless phone is unlocked. Songs can’t be changed at all.