Graphics corruption in Amiga version
The cursor overwrites graphics from the old location, screenshots available
There is a small underline-cursor on the screen. When the cursor is moved and something else is drawn in the location it previously occupied, the new object is missing parts of the graphics that was previously covered by the cursor. Easier to explain with a screenshot that hopefully works:
The same thing happens when typing the name of a new character, and that is the fastest way to reproduce this behaviour.
It is likely that the graphics is somehow updated before the cursor is moved.