Hi @Lely,
The site that has issue is in the development environment. Unfortunately it is not accessible from outside.
However, we figure out a way to fix for now. This is what we do:
.x-acc-header {
display: inline !important;
width: auto !important;
float: none !important;
position: static !important;
overflow: visible !important;
}
.x-acc-item {
display: block !important;
width: auto !important;
float: none !important;
position: static !important;
overflow: visible !important;
}
Not sure if that is 100% correct, but it does solve the issue.