using Imagetrace from properties panel no longer works after update to 23.0.3 working on MAC OSX 10.14.3
Only way to get it to work is from Object > imagetrace
Please accept my sincere apology for the inconvenience. Please get in touch with us at any of the other support channels – https://helpx.adobe.com/support.html . Since this is not a generic issue that we can reproduce at our end, we will need someone to look into your machine to figure out what is going on here.