Hi,
first a big thank you for this game - last year I had much fun with the latest stable release. Observing the immense changelogs since then, I thought that I should give the development build a try.
I've got a very big problem with all maps that do include Harvesters, as the Harvesters stairs are non-functional both for the aliens and me. As a result, any aliens trapped in the upper level of a Harvester are impossible to shoot. I've observed the same problem in Odie's builds before and after that release, however as I understand it, even the newer releases use the same maps. I'm running them on Vista 64.
The only workaround I could find yet was never to shoot down a Harvester (as auto missions are not possible then) and only use auto missions when I've got a Harvester on the ground. Interestingly, that leads to another observation, surely known: Auto missions always fail completely or are a perfect success. There's never a civilian harmed or a single soldier lost with them.
Screet, currently downloading R24571 in order to see if aliens still can move to strange places on fighter crash maps (including use of the same space as soldiers do)