I have a project that plays fine in X3e but skips random MIDI events in "new" Sonar. It's a drum pattern playing through AD2. It randomly skips a kick here or a snare there. All settings in Preferences appear to be the same. Has this happened to anyone else?

Sometimes having settings the same as a previous version does not work, if it did there would be one place to set up SONAR for all versions. Try increasing the "Prepare using nnn Millisecond Buffers" in Preferences > MIDI > Playback and Recording

I migrated my X3 settings into Platinum. In X3 the MIDI buffer was set (by me) to 500ms. Platinum after migration still had it set to 250ms so it seems that's a setting that doesn't migrate.

I also had a few other really strange problems that were solved by letting Sonar replace the aud.ini file, so it could be something went adrift with the migration, but I don't recall previous versions of Sonar migrating that setting into new installs either.

Cake really ought to consider setting that buffer to 500 or even 750 by default. It turns up as a problem roitinely on this forum and I've seen people on other forums who have Sonar problems that look like the classic MIDI buffer issue. Unfortunately, in the absence of anyone who can tell them how to get MIDI working again, the impression is given that Sonar is quite useless if you use MIDI, which is of course the exact opposite of the truth.

That kind of publicity can not help sales at all.

Thanks guys. It was 250 by default. Same as X3. Bumping it up to 800 seems to have remedied the problem.