When Menu item contains &, it appears as & in the breadcrumb

Works as desired.

Can you please provide more info

VanessaM, what is the behavior you are expecting ?
If a character which is entered is shown as is, it is working as desired.

VanessaM,

I am attaching an image, it looks to be good on my end, Can you also upload an screenshot, that would be helpful.

When Menu item contains &, it appears as &amp.
Example:
Menu Item -> Fruits & Vegetables
Breadcrumb will show -> Fruits &-amp; Vegetables
( Note I have added dash after ampersand symbol, to prevent it being interpreted as code)

I have a similar issue where an apostrophe ' in the title of a page displays as &#039
My guess is there needs to be a html_entity_decode in there somewhere.

Issue still exits.
When Menu item contains &, it appears as & in the breadcrumb

This doesn't happen from the latest version of Menu Breadcrumb on either D8 or D9, and it didn't happen in version 8.x-1.4 either. We've had web page titles with & in them in our test data from back when this module was in alpha, so it's never been a problem in any 8.x version. Sure it might still be a problem with 7.x but the current maintainer can't reproduce any D7 issues let alone fix them.

Therefore I'm setting the Version back to what it was before the last comment. If the last commenter is seeing this then it's the result of some other module or theme action, not the 8.x version of menu_breadcrumb.

Suggest to take a look at #1827204: special characters such as '&' are double-escaped by twitter_bootstrap_menu_link - should not be sanitizing which was a contemporaneous bug in Bootstrap theme.