Single-note dynamics/crescendos doesn't work with tremolos.
I don't really know if this is a bug or a feature request. When you (that is, the developers) said you were incorporating single-note dynamics and crescendos, I thought that would work for tremolos as well. But it doesn't. Is it a bug or have you just not gotten around to it yet? It's not a critical problem, but it just seems strange to me that this feature was left out. If you want to test it on your own computers, you can use the attached score; I could be missing something. :)