Textbox Overflow Handling - Scrollbar not Saved with the File

I am experiencing a similar problem to Jennifer. Regardless of what textbox settings I choose, scroll bars always appear.

Changing the settings makes no difference - I NEVER want a scroll bar to appear, I want text to overflow OR box height to expand. But regardless of what settings I choose, a scroll bar is added when accessible text mode is on. This is awful for designing, as there is no scroll bar visible when editing, but in preview, suddenly every text box or shape (including buttons!) has a scroll bar.

The settings 'overflow' and 'expand height' seem to be ignored and a scroll bar added.

I have tried creating new projects, checking updates, recreating objects, changing margin settings - everything I can think of, and nothing has worked. If 'accessible text' is on, all objects with text suddenly get scroll bars. This is not a practical workflow - I can't preview every single object to test for scrolling because they don't appear when designing and when there are supposed to be settings to prevent this situation.

I cannot find anyone else having this issue. Am I missing something or interpreting the behaviour incorrectly? Appreciate any thoughts!