Fingered tremolo / shakes

[sepheritoh]

When I enter a fingered tremolo / shakes in my score the playback does not seem to interpret this correctly. Upon playback Notion just plays a single chord on the piano. This behaviour does not seem to be consistent and I am not sure how to make Notion repeat the problem. Sometimes when I use this technique, it plays correctly, but sometimes it does not work.

[sepheritoh]

Here is an example file where it plays fine some time but not fine other times

http://www.yousendit.com/download/ZW9CK ... Ukd4dnc9PQ

PS link will be available 7 days only

[edit]
http://www.dog-on-blues.co.za/various/tremolo.notion
This is a more permanent link to the example file