My TIME MACHINE backup goes smoothly until the end when it says, e.g. "Backed up: 13.90GB" and it just hangs there for hours on end. I am running macOS Catalina, Version 10.15.3 and am only currently using about 1TB of a 6TB external HDD to backup to. I had a problem with "adware" and reformatted my TIME MACHINE DISK, and whilst it has successfully backed up once, it refuses to go past this "Backed up: 13.90GB" and create anymore backups. I have "Back Up Automatically" ticked, but that doesn't seem to have much merit
Any concrete suggestion would be truly welcome.