Best answer by zeeb
tomaz Kamenecki "... OK GUYS! - If you're on iOS close the soundcloud app, then go to your settings and open the soundcloud settings. enable "Clean Database" and "Clean Image Cache". This should refresh all playlists when you open soundcloud. I tried adding and removing tracks from the playlist from my computer and it seems that the app on my phone now also updates the changes. Worked for me, let me know if it did for you!...."
its a temp workaround... cheers J.