Hi,
on my place it works fine. Different between your and my project starting is that you use the Xilinx Board Store installation (which is betaversion for my scripts at the moment).
Maybe something goes wrong with board store installation or you has some older board files installed (2020 Boad Files was updated at theduring feburary this year on Xilinx board store, maybe your vivado version has installed some older one?).
Can you delete your whole TE0720 project, unzip the download again again and run again(TE0720-test_board-vivado_2020.2-build_2_20210217064913) and project creation. But this time without board store, use default local board file installation.
Note: Can it be that you also installed Vivado only? For SoC devices you need also Vitis (Vitis installation contains also Vivado).
br
John