The post you are referring to is for linking when you inline content in a Label e.g. Link to something.
Did you see this post on linking which covers the scenario when linking from Yes / No items and other form items.
The #1 reason the error “ID could not be found” occurs when trying to link internally to an items is the # before the ID was not included in the Link ID.
Also, with all of your mandatory items you really need to fully understand how that works for you to utilize properly, especially when linking. It is pretty simple. If an item is marked Mandatory in a List, all items in that list after that item are disabled until you check that item. So if you are trying to jump in the middle of a List that has all items Mandatory that will not work unless you know that all items will be first checked or you are jumping to the first item. That is why I suggested putting your Section in its own list. If its in its own List you will be able to jump to the first item.