Can I get Toon Boom to stop crashing during launch?


So I’m in the middle of doing a commission job for a theater project, basically making animated backgrounds that loop for 10 minutes for every scene. Just recently I extended these scenes to 10 minutes on their timelines. But now whenever I try to open those scenes Toon Boom crashes before I can get in. I use Toon Boom Animate 3 on a Toshiba windows 7 laptop. I suspect the length of the timeline is responsible, because I can open shorter files just fine. It would be really helpful for me to be able to get these to open again if possible, because if I can’t I have no choice but to redo a bunch of work all over again. Any way I can fix this?