coral multifield reordering button is not working in aem 6.4

Hi @annkitaaggarwal 

is it giving any kind of error?
also, can you share the XML for your Coral multi-field or some screenshots for more clarity?

These problems sometime may happen with the wrong dialog structure, so I'd give you a suggestion for this, that you can try it out, Drag and drop a OOTB List Component or maybe a component that has Multi-field, and try to do the re-ordering there, if that works fine, simply copy the Multi-field structure from that list into your own component and customize it according to your requirements.

It'd definitely help you.