Here is a workaround to solve this problem :
Make sure SpeechExec is not running
- go to Control Panel / Color Management
- Switch to Advanced tab
- Set the Device Profile to something different than ’System default’
- Close Color Management
- Start SpeechExec
Important: It is crucial to prevent SpeechExec from running while changing the Color profile, otherwise SpeechExec will not identify the changed Color profile.