Problems with web page form on iOS 8

I've been developing a web form using standards and have noticed the following voiceover problems on iOS8 that are not present on iOS7 (using Safari on iPhone 6):-

- Text wrapped in a <legend> tag is not recognized or read (we use this for the questions above a group of radio buttons containing as recommended on accessibility sites)

- Labels that are 'for' an input are no longer linked to them so they work independently and make usability difficult.

- Radio button groups that are wrapped in fieldset are miscounted. We hear things like "Radio button 9 of 5" for example.

Are these problems being encountered by others? and are they being fixed or is some kind of workaround necessary?

Thanks

James