That is odd, I am working on that right now and its working fine. Audio - for some formats, flac I think, you need to re-load it each time you open the blend file to see the wave form and get it to behave properly - so you click on unpack, remove pack and then on caching again. What are you trying to key that won’t work? I’ve been keying volume without problem (although drivers can be made they don’t seem to actually do anything in the vse currently.) I’m using xp pro 2.53 svn 31266 currently
I’m pretty sure that you can key your crossfades by making a curve for opacity, IIRC you have to set both strips blend mode but I can’t remember exactly what - fiddle with it.