WordPress Menu won’t accept absolute paths for page anchors for another page

Hello, I have a problem with the Wordpess Menu on my Site. When I create a page anchor on my website, where I can jump to for easier navigation, I can’t put this link in the wordpress menu.
For example: I have an anchor “download” in my site. When I add the link to the menu with the individual link tab, it does not redirect to the other page i put in the link. Instead it links the anchor just for this site. I tried using the link without the “#” identifier for anchors and then the link gets accepted in the way I put it in. But as soon as I put the “#” back into the link, it does not work anymore.
For example: I am currently on a subsite https://www.mysite/contact. I want to go from there to this site https://www.mysite/#download by clicking on the corresponding tab in my menu.
But this does not work. This is the link that I get out by clicking on the menu tab: https://www.mysite/contacts/#download

I don’t know what the problem is here. I can’t show you the example on the actual page because it is currently under development and isn’t available for the public yet.