Indeed, there are a couple of problems in the Q4 release of the WinForms suite which we did not managed to fix in the Q4 release, due to the short period of time we had between the Q3 and Q4 releases (about a month). Nevertheless, bug fixing is our upmost priority for the upcoming service pack, due next week.
I will kindly ask you to start new support tickets on all problems you have encountered so that we can help you solve them, or provide fixes. Although we are familiar with some of the issues, you may have stumbled on some issues which our internal tests and quality assurance did not manage to catch. Your cooperation and support are much appreciated.