I have found that the multi-riff feature (both by using the F8 multiriff window and the Contrl+F8 function) doesn't work (at all, in my case) with realtracks that are set to half-tempo (not sure about double tempo, haven't tried it). Found this with multiple tracks and songs. Reset to factory settings doesn't work for me. I have Biab 2024, v. 1108. Anybody found the same problem?