Both the iOS app and the web app are discarding the number and punctuation in this phrase “Так 19-летний парень” when the text is selected - and the iOS app as usual makes all letter lower case as well. I’ve reported this before.
This is annoying and it adversely affects the translation which should read “So a 19 year-old guy” - not “So a summer guy”
For me the TTS function has been ignoring some numbers – written out as digits, like “1976”, when creating audio to go with books I have uploaded in French. This is a fairly recent thing, it was able to recognize and pronounce numerals normally before this.
Another reason not to discard punctuation: чего то could by “what, then” if separated by a comma (чего, то) or something if separated by a dash (чего-то).