Edit: Contrary to my initial speculation, it does not seem to be related to the first of the two problems mentioned, because that is still present (and is present in LR3, too, so it probably has nothing to do with the new process version and associated problems).
How can I log a bug? Until now I thought that the only way to report a bug is to post a problem on the feedback forum, because the old bug report form is no longer in use: https://www.adobe.com/cfusion/mmform/... => Lightroom => "Share an Idea, Ask a Question or Report a Problem and get feedback from the Photoshop Lightroom Development Team and other passionate users on the Photoshop Family product Feedback Site on Photoshop.com"
Edit: Contrary to my initial speculation, it does not seem to be related to the first of the two problems mentioned, because that is still present (and is present in LR3, too, so it probably has nothing to do with the new process version and associated problems).