(0xc0000142) error on Adobe Media Encoder

This corrected my issue.

Use controlled folder access

Controlled folder access in Windows Security reviews the apps that can make changes to files in protected folders. Occasionally, an app that is safe to use will be identified as harmful. This happens because Microsoft wants to keep you safe and will sometimes err on the side of caution; however, this might interfere with how you normally use your PC. You can add an app to the list of safe or allowed apps to prevent them from being blocked.

1. !
   • Select Start > Settings > Update & Security > Windows Security > Virus & threat protection.
   • Under Virus & threat protection settings, select Manage settings.
   • Under Controlled folder access, click the Allow an app through Controlled folder access link.
2. 
3. Click the Add an allowed app button.
4. Navigate the new location you want to add and click the Select folder button. In Windows 10, this would be similar to:
   • C:\Program Files\Adobe\Adobe Media Encoder CC 2019\Adobe Media Encoder.exe

I did a few others as well.

Hope this helps!