Hi,
Same thing has been happening here: Edge stops reading aloud and jumps to the next paragraph as soon as it encounters & symbol. On top of that, it will often if not always hang after finishing that subsequent paragraph and needs to be restarted. This makes the & symbol a somewhat dreaded encounter which you hope to not cross, but you end up all too often regardless.
Also, right-clicking on a word (without selecting it first) and clicking read aloud will start reading 2+ paragraphs below. Creating a selection of the word before right-clicking will start reading at the correct place.
These 2 issues make the read aloud feature really annoying to use.
Just updated to the latest version
Version 126.0.2592.102 (Official build) (64-bit)