Cross staff piano not allowed?

[bo.lundby.jaeger]

Hi,
Why cant I cross staff in bar 46 and 48 (mark the note press M or N)
I enclose picture from finale showing what

12.Trio.Lento.dorico (2.0 MB)

I want
And the dorico file regarding

[charles_piano]

Hi,

Your piano is a single staff instrument, and the bottom staff of your piano is actually another player (you can’t use cross staff with different players).

[bo.lundby.jaeger]

Ah I suppose its a xml finale~dorico problem I should have tjekked/ sorry

Thanks