It doesn't appear to me that there is a universal problem, Chappers. I didn't have a capture time reset problem at all... but I did run across the previously mentioned metadata update problem-- there are similar reports at the Adobe.com Lightroom forum.
If you're not experiencing any problems with metadata update, I wouldn't worry. When I first started up the new version, every DNG I worked on in the Develop module and updated became unworkable, and it would crash. Afterwards, startups would show the splash screen, and then an unexpected error would cause it to quit. I think it had something to do with the catalog, because deleting the cat and reimporting solved the problem.