Hello Taisho,
Thanks for your reply. I’m not sure if it’s an incompatibility with another plugin but the installation of the Ajax Cart AutoUpdate did mess the layout and CSS of my mini-cart. I am 100% certain about it because I didn’t do any other changes other than adding the plugin and activating it. As soon as I did this the mini-cart was affected. I could even get the mini-cart to open unless I refreshed the page one more time after loading it. This had never happened before. I had to restore from the previous day’s backup and now it’s all back to normal.