Clash between gradual tempo change and a text, bug?

Hi guys,
I have written a gradual tempo change with dots after it and then an “a tempo” marking as a text (because I want it to appear in italics). the two don’t appear at the same height, and every time I try to move one of them in engrave mode the other is jumping to a different place.
מחזור שירי פוגל - Copy.dorico (966.5 KB)

There is also an eighth=eighth in the middle that causes problems with the dots.

Please see this recent thread: