Help with audio exports please

[shacke]

Hi, hope someone can help me please as I am losing my mind. I am doing an MP3/WAV export from Ableton Live Lite 12 but two of the tracks are not sounding in the exported file. The routing is all set to Main and is the same for every track but two of them just do not seem to be getting exported. I've even tried exporting those tracks individually but same problem. At this point, I have no idea what the problem could be. I am only using 6 tracks (two midi) so it's not a question of being over the limit. Any help please. Thanks

[doubleUG]

are there any M4L devices in you set?