When I clicking this button, a bug occurs

[Felix W]

This prevents me from using this feature properly

[David Healey]

@BobCat What version of HISE?

@Christoph-Hart Actually I'm seeing this too in the latest develop branch.

[David Healey]

@Christoph-Hart Can you also do something about this?

And the group index is off by 1.

[mcseay]

In addition, it is currently impossible to add the lower velocity cross fade via the GUI or via manually editing the sample map xml. When adding the "LowerVelocityXFade" values in the XML and loading it into the GUI, they are wiped out.