Question about VoiceDream Reader

Hello everyone.
I have a question about VoiceDream Reader. When I'm reading a book with my brille display, and I get to the end of text, the display said the percentage of text that I've gone through. When i hit the curser to hide the percentage, the display does not place me at the beginning of the sentence. Not sure how to fix this?

Thanks for your help.
Have a good day