According to the wiki page initiated by @Louis_R (excellent job btw!), a few of the issues that were collected by the forum members have been solved, but others haven’t.
If there are further issues that have been solved with 12.0.30, it would be great if people checked there and set the respective entries to solved.
Regarding the unsolved ones, it would be really nice to hear from Steinberg what they are going to do about them and if we can expect for them to be fixed with the next maintenance updates.