Hot did you align your text inside the field? If it is set to align Center, that makes sense to your problem
Text was aligned at the Top.
With some more testing it appears that this was caused by something in the Theme. I tried a new basic layout set to Minimalist and that layout correctly rendered the input/cursor at the top of the field.
I then went through the regular layout I had started with and cleaned up the Theme and Styles; a rather large task as some of the Categories had 200+ Styles in them. I made a copy of the current Theme and then I removed all the Styles except new ones that I was creating for elements on the page. Having done that, the original layout now also correctly renders the cursor at the top of the input field even when the scroll bar is set to 'always on'.
So it appears to have been something wonky in the Theme or a Style.
Always nice to figure out the problem self
Well, it would be nice if I didn't have to worry about some stray vestigial setting that came from who knows where affecting the rendering of my objects.
Everything graphical comes from a Theme. I always start building my Theme in Chiyoko´s Designpalette
There I can play around with my theme and check how things works before I start working on my production layouts.