I put together a handful of patches in a multi. Originally it was playing only one sound at a time. Then the next time i messed with it the sounds all played at the same time but so did the Initialized patch sound. I assumed my other parts in the multi were still Init so I went and turned all the empty parts patch volume all the way off. This helped as it got quieter but it will not go away. There remains a buzz saw wave over the top of everything. It stutters, distorts, and fades out seemingly in accordance to velocity. Sometimes it will even sustain forever after I play notes until I hit more notes or switch patches.
This obviously renders the multi useless.