We have been working with Jeremy to find the cause of this issue and eventually replicate and squash it. If any other user is experiencing anything similar, please let us know here or in our support @ fleksy.com email.
Some further info on the issue:
"After loading up Fleksy and entering typing screen, VO starts reading off combinations of letters, numbers and symbols. Seemingly random ones. This may happen even when VO is reading a word just typed."
Thank you so much for your patience and help on this peculiar bug.