I've been using Bootstrap 5.3.3 since the very beginning on my project. Absolutely everything works fine, except for Accordion. I copied the exact same first example from the Docs, but they simply don't work as the demo. My Accordions REFUSE to close. They only open and that's it. I've been working with Angular and BS since 2019, and I've never came across something like that. I don't know if I'm missing something here, but there's not a single result in Stack Overflow that solves this issue. ChatGPT is useless in this moment as well. I only get to make this god damn Accordion to collapse if I use this command on the DevTools new bootstrap.Collapse(document.getElementById('my-accordion-id')).toggle(); Be aware, again, the following shown implementation is directly copied from the docs: Page load, before clicking: After Clicking: Now, the goddamn 5.3.3 Notes also mention explicitly: - Fixed the accordion CSS selectors to avoid inheritance issues when nesting accordions. I don't know if they actually messed up but, come on, it's been out for 11 months already. Continue reading...