My macOS Catalina update is not showing up and nor is it downloading please check and help
My macOS Catalina update used to show up on my Mac Pro (late 2013) because it is compatible but when I had clicked the upgrade button it used to always get stuck to a certain MB out of 8.9 GB and when I had tried to update it several times it didn't work and after some time now when I had opened the software update section it is NOT showing the MacOS Catalina update but instead it is showing me the previous update
and on that to when I tried to update it isn't updating it but instead it is also getting stuck on the downloading just like the macOS Catalina update
PLEASE HELP.....
Mac Pro