On some computer configuration, you can crash while baking since Substance Painter 2019.2 because of the introduction of new features. If that happens, we recommend to disable the following settings.
Go to
Edit > Settings > General, the scroll down to the section
Baking Options, then:
- Uncheck "Enable live preview baking process"
- Uncheck "Enable GPU raytracing"

You can find more information about what those settings do in the
documentation.