Hi there,
and Welcome…
So those particular demo’s require a high attention to the fine details for the edits to the TFT-ESPI to work out. To eliminate and Cockpit issues or problems between the Keyboard and the floor 
this link has a zip file that contains a DRAG and DROP Uf2 file , follow(read) the thread and download the zip, unzip uf2 file and place the Xiao in Bootloader mode,(reset & boot) when the drive appears drag the uf2 file (unzipped) to it. WAIT … it will reset the Xiao and if you have the chimp-wink.GIF on the sd card (32G) max. you will see it on the display.
HTH
GL 
PJ
This will verify your hardware and get you closer to the Answer.
here is an adtional demo & code “rolo” for round display.