I had a similar problem, but the original data-parent parameter did not work.
My problem was that on my page there were two groups of groups linking to the same #accordion identifier. The solution was to give each group a unique identifier
< class="accordion" id="myAccordion"> < class="accordion-group"> < class="accordion-header"> <a data-parent="#myAccordion"> < class="accordion-body"> < class="accordion-group"> < class="accordion-header"> <a data-parent="#myAccordion"> < class="accordion-body"> < class="accordion" id="myAccordion-2"> < class="accordion-group"> < class="accordion-header"> <a data-parent="#myAccordion-2"> < class="accordion-body"> < class="accordion-group"> < class="accordion-header"> <a data-parent="#myAccordion-2"> < class="accordion-body">
Pretty obvious in retrospect; -)
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