NVDA reading previous slide

Hi all, I've noticed an issue with NVDA which seems strange, so wondered if anyone had seen this before.

These are the steps!

1. User selects button on slide 1
2. NVDA reads out the aria name on the state
3. Trigger jumps to slide 2 (not layer) (trigger is jump to slide when button selected)
4. NVDA continues to read out the name of the button, and not the new content on the slide.

I've always had a 'hard break' on NVDA once a slide has moved on so this is strange.

Has anyone else experienced this?