Storyline display problem on virtualized Windows 11

Hello,
I installed articulate 360 ​​Storyline on virtualized Windows 11 on virtualbox 7.0.16_ Ubuntu r162802 installed on Ubuntu 24.04. It works except for the areas / fields to be completed on the slides which have a black background and a black font. In fact, we cannot see what we are writing, except by changing the font color. Do you know how to change the default appearance of the background of the fields to be completed?
Thanks in advance