I see two problems
First is that when I click generate two numbers are already highlighted.
The other is the same as these threads.
https://forum.freecodecamp.org/t/build-a-sorting-visualizer-build-a-sorting-visualizer/770788
https://forum.freecodecamp.org/t/build-a-sorting-visualizer-build-a-sorting-visualizer/770639
https://forum.freecodecamp.org/t/build-a-sorting-visualizer-build-a-sorting-visualizer/769819
https://forum.freecodecamp.org/t/build-a-sorting-visualizer-build-a-sorting-visualizer/769172