Audio sounds different in the Multitrack than in Waveform

[Sazarret]

Hi everyone, I´m encountering an issue I haven´t had before. Every clip I edit and work on in the Waveform tab sounds more muted and less bright in the Multitrack tab.
The Multitrack presets are set to Default, and I use the same settings I usually use. I even reset Audition´s settings to their default by pressing shift when opening.
I´m also experiencing the same problems with older projects that I´m opening now.

The only explanation I can think of is that Windows recently updated automatically. Maybe that changed something, IDK.

The following link contains two audio files. One contains a voice-over recording directly from Waveform (mono), and the other is the same voice-over exported from Multitrack (stereo), so you can see and hear the difference. There´s also a screen capture of a test session, so you can maybe spot something I´m not seeing.
https://drive.google.com/drive/folders/1vwne_tTVPtwpXAzU4HtXaG8yGCokg3YF?usp=sharing 

The problem is driving me mad and making using Audition impossible. I don´t want to use another app just because of this. Please help!

My setup is:
Windows 10 V. 10.0.19045 Build 19045
Adobe Audition Build 22.1.1.23

[SteveG_AudioMasters_]

It's just the Panning mode you are using - the resultant mixdown is just 3dB lower. There are two possibilities; firstly just raise the Master level by3dB before exporting your mix - that will restore the level. Or go into Edit>Preferences >Multitrack and set the Default Panning Mode to L/R Cut (Logarithmic). This will work fine on future sessions, but may not work on ones you've already mixed - you'd have to check. Also if you alter this setting, you'll have to restart Audition for it to take effect.

[Sazarret]

Thank you so much for the help, SteveG. Unfortunately, changing the panning mode did not work with my older projects, but the issue was no longer present when I created a new Multitrack session. The good news is raising the master level to +3dB did the trick for my previous projects.
What I´m confused about is why I haven´t had this issue before.

[SteveG_AudioMasters_]

It may be because you had it in the L/R mode before, and when you loaded a new version of Audition, it assumed the default setting, which is the other mode. So it could possibly have changed it without you realising...

[Richard M Knight]

What are the settings for the multiband compressor? What are the settings for the multitrack session?