hi.
go to nvda preferences object presentation, press enter on it and see
the first two options which are system focus and system caret.
they should be checked.
if they are uncheck, check them with space key.
God bless you!

--
Those who follow the Messenger-Prophet, the Ummi, whom they find
written down with them in the Taurat and the Injeel [who] enjoins them
good and forbids them evil, and makes lawful to them the good things
and makes unlawful to them impure things, and removes from them their
burden and the shackles which were upon them; so [as for] those who
believe in him and honor him and help him, and follow the light which
has been sent down with him, these it is that are the successful.
holy quran, chapter 7, verse 157.
best website for studying islamic book in different languages
al-islam.org