Windows 10, latest update. Vegas Pro 16. Latest version of DVD Architect.
I am running into this problem repeatedly, although unpredictably. Sometimes I can take my DVD projects all the way to completion, sometimes DVD-A crashes in the middle of a project: "DVD Architect has stopped working". Once that happens, if I try again to load and work with the saved DVD project, it crashes every time. I uninstalled DVD-A and installed it from the latest download from the Magix website, but that has not solved the crashing problem.
Right now, I'm having to re-start from scratch building a complex menu structure to re-create a DVD that I had been able to master and burn successfully earlier.