Same what happend with the grid (huge fonts, now fixed, see thread https://www.tmssoftware.com/site/forum/forum_posts.asp?TID=13121&title=tmsadvstringgrid-font-bad-in-latest-version-for-me) also happen with the TAdvDualListBox.
It only turns to normal, when DPI awareness is set to none or unaware in the Project Options.
Picture where is displays way too huge fonts (Font set to Arial 9, Normal):