Scrollable region in demo has its text rendering cut

I checked, there is no typo in the code. For some reason it cuts `n` when rendering the label and even more (almost 2 letters) when scrolling horizontally.

Start by reproducing the issue in the demo, focusing on the scrollable region and its label rendering during horizontal scrolling. Trace the rendering path for the affected text and compare static versus scrolled output. Done means the full label renders without characters being cut in either state.

Written by the indexing model from the issue text.