We are aware of some iOS readers having trouble with the reading position saving on the app, meaning when they leave a story and go back to the story later, it does not save the last position they were at and instead leads them to the start of the chapter.
We really apologize for any inconvenience this issue is caused - we are tracking the issue and have raised it to our development teams to look into, so we hope to have it resolved soon!
We will post again as soon as we have a fix!
Thanks for your patience and cooperation with this,
The Wattpad Team