For the first time I use the multicamera funktion in Vegas pro 19, I used Gopro, Sony and Canon camera's, so I need to use colorcorrection to give the camera's the same color, only when I create a multicamera track al my colorprofiles for the camera's are gone, what am I doing wrong ?
Are you doing the color correction on the media in the Project Media? That will follow that media everywhere.
If you want to use color correction at the event level, you could use a 3rd party multi-cam tool (such as Excalibur) instead. But for the built-in multicam, you need to color correct at the media level.