Typically I'll select the tracks that I want to export, then choose the export selected tracks function and export based on the cycle range. It normally works fine but in this session when I go to the folder I exported them to there isn't anything there. I tried again and this time watched the target folder and I saw that temp files appeared there, but as soon as the export finishes they vanish. Occasionally a few will stick around but they are rarely the full cycle length. There have been a few times where in the same batch export I'll have a track that DOES export at the full cycle length but then a few that don't. I've tried a bunch of different export settings and nothing seems to be working so I'm soloing each track individually and bouncing the project for each which is really tedious. I have had this issue once before when I moved the start of the project to be before measure 1 and it messed up the time code or something, but the timecode is fine in this project and I can't work out why the export function is acting so inconsistent.