I do not have this issue using NVDA 2020.4 stable relese. However, I am seeing this issue reported on other lists. With 2021 beta 5, people are reporting that navigation line by line (with the up/down arrow keys) renders no speech. Can anyone official or otherwise confirm this issue?
For a nation to admit it has done grevous wrongs and will strive to correct them for the betterment of all is no vice;
For a nation to claim it has always been great, needs no improvement and to cling to its past achievements is no virtue!