I just upgraded to 7.5 from 7.4 and now all my songs sounds terrible. I pinpointed the problem to the Drumgizmo tracks, which look ok, but on playback, every drum sound is slightly delayed (~100ms) so the midi drum track gets out of sync with all the audio tracks (bass, guitars, vocals). When muting the drums the other sound fine together.
When I disabled Timing humanizer in DG it snapped back into sync.