Weird Clipping on Master Fader

[gus95]

Hi everyone!!

I noticed that the Master Fader in my session is clipping way too easily even though the levels of the other tracks are OK.

In order to resolve the issue I have tried many things such as adjusting the levels of my audio interface, adjusting the buffer size, creating a new session, re-installing Pro Tools and changing the sample rates, but nothing seems to work out.

I've attached 3 photos to illustrate what I am trying to say, and in the third one you guys will see that there are two "squares" (sorry for being a noob) above the green level bars that are causing the Master fader to clip.

If anyone could lend me a helping hand that would be much appreciated.

Thank you