Live 9: Disappearing Waveforms in session view.

[[jur]]

I'm just now having this same issue.

After loading the session, some of the tracks aren't visible unless i zoom way in. I can hear everything fine, though.

None of the above suggestions seemed to work.

HOWEVER, The trick I found was to simply consolidate the parts of the track that were missing to try and give the system a kick in the pants. Annoying for sure, but at least it worked!!

Hope someone else finds this helpful

You should definitely report this to support@ableton.com.