Catalina update to 10.15.3 not working
iMac 21.5, late 2013, fully spec'd runs on 10.15.2 and prompts to update to OS version 10.15.3. Rebooted the machine and updated OS numerous times, but it keeps staying on version 10.15.2. Pretty frustrating now, sufficient space on HD, no known issues. Anyone an idea what is wrong here?