Bug when inserting two accordions one above the other with active sections

Hi,
I want to insert two accordions on the same page. For the first of the two accordions, I want the first two sections to be active.
Having two accordions on the same page causes the opening system to bug. I've done some tests: when I put just one, it works, but when I put two, it bugs. The same goes for nested accordions with active sections. What should I do?