Sequences play in Song mode, but mute in export?

I'm probably missing something really simple here, but I'm new to MPCs. Whenever I try to export a song to Audio Mixdown it only plays the first sequence in the mp3 and then silence. It doesn't matter which sequence I put first, it's the only one that plays. Nothing seems to be muted and the songs plays fine in song mode. What am I doing wrong?

I have sort of a similar problem! I have a sequence with some vinyl recording samples and i can hear everything in the song mode but when i export to mp3 or wav i hear everything except for the vinyl samples.

What am i doing wrong...

EDIT: i found a fix sorta. I exported the mixdown and as usual i didnt hear the sample from the vinyl. But then i tried to open the same file in ableton and then the file did show the waves from the vinyl and the sample also was hearable. Then when i tried to export from ableton i clicked the box of normalize and convert to mono. And it worked. But tbh. This should happend. Idk what i did wrong or is this just a bug??