Why is the volume so different when rendering tracks in place

Hello, I’m making a trailer track and when using all VST’s, I got the hits to sound how I liked. But when I rendered all tracks in place, I could barely hear those hits amongst everything else. Any thoughts as to why this is?

What Render Selection > Processing option have you used ? I would suggest the ‘Dry’ one to see if there isn’t something in the audio path that could alter the level of some tracks during the process.

As a complement, I would also try to do an Export > Audio Mixdown of the whole tracks and reintegrate the resulting file in Cubase to check if there isn’t any level issue with it also.