tekst within \Dynamics

I wanted to add a 'Cresc. molto' within the \Dynamics between two piano hands. Using a \Markup within the piano would show it uncentered and out of whack.
I tried

cresMol = \tweak DynamicText.self-alignment-X #LEFT
#(make-dynamic-script (markup #:normal-text #:italic "Cresc. molto" ))

Which looks ok, but showed an error: unbounded AbsoluteDynamicEvent

And I also needed to add a \Whiteout, because it crosses a barline. \Whiteout can't be done within a dynamic-script.

Then made this:

cresMol = {
\once \tweak DynamicText.text \markup { \whiteout \pad-markup #0.3 \normal-text \italic "Cresc. molto" }
\once \tweak DynamicText.self-alignment-X #0
\once \tweak DynamicText.layer #2
\once \tweak DynamicText.whiteout ##t
\p}

Which looks ok when used, but still raises an unbounded AbsoluteDynamicEvent error.
So I could just ignore the error, because the result is just fine. But rather have a proper solution.

invoked like:  s\p s4\cresMol | s2. |

it looks like this. How could I solve the error?

[2026-07-15 15 13 52.jpg]

Met vriendelijke groet,
Erik Appeldoorn