I was indeed trying to install it in the right place, but I have no idea why the system suddenly allowed it.
I have another question, this one about kerning. I was just experimenting with Cadence and I noticed that, while stacks of accidentals are kerned nicely, kerning to other elements seemed not to work. Here’s a passage in Bravura:
and the same passage in Cadence:
I’m wondering why the sharp of the g# doesn’t tuck under the d’ before it in Cadence but it does in Bravura.