Environment

• TeXstudio: current build
• Qt: 6.10.1-2
• OS: Windows 11
• TeX distribution: miktex

Expected behavior

normal scrolling

Actual behavior

Now scroll one by one to the right with the horizontal scroll bar:

How to reproduce

\documentclass[11pt,a5paper]{article}
\begin{document}
    abc
\end{document}

There are four spaces before abc.

Some Adv. Editor settings: