There’s only one crash log in the diagnostics, but it doesn’t give too many clues. If you’re able to reproduce this on demand, please provide the project and the steps to reproduce and I’ll be happy to investigate further. If you don’t want to or can’t attach it here, you can email me at d dot spreadbury at steinberg dot de.
Thanks for sending over the project. Dorico is crashing because of a divide by zero, because the extremely slow tempo you end up with means that one quarter beat is longer than one minute, and that means that when Dorico is calculating the tempo using integral values, it ends up at zero beats per minute – and in one spot we’re not expecting that, and ending up dividing by that BPM value, with disastrous consequences. For the time being, try to keep the tempo a bit quicker, but we’ll fix this in a future version.