Hello there!
I am trying to make my timpani part, and as far as I know, there is still no way to mark timpani-tuning, other than adding a text-box (I use Harp Pedaling as Paragraph Style) and using a mix of Academico and Bravura (I copy the flat and arrow symbols in). This worked fine for me in Dorico 3.5.
In Dorico 4 however, pasting symbols from the bravura style in existing text boxes doubles the vertical size of the text box and I could not figure out, what causes this.
Attached you find a screen, showing the text box before pasting a flat-symbol (copied from the very same box) and after pasting it.
Thank you!