Yes I am still experiencing it however it is not constant. I have had my computer turned on and logged in since yesterday with no issues, however I am not wanting to restart / log off the computer yet as I am currently downloading and don't want to risk the issues happening again. When I do have the issue, my computer does not reboot, it simply freezes. The freezing will occur after about 5 mins of not touching the keyboard or mouse. I will do some more trouble shooting shortly. Another thing I have notice of which seems to have started at the same time as meet completing my macOS Catalina install, When I log into Windows 10 and go to play Fortnite, the game crashes and / or the screen turns off and loses the signal from the PC. (This never happened prior to me installing MacOS) Could these two issues be related I,e Maybe a setting in the BIOS that was changed to suit MacOS or could the Firmware of the graphics card have been modified by MacOS? Its probably less likely to be the BIOS settings as I have two profiles in the BIOS, one for MacOS and one for Windows 10.