Issue with spotify and html blocks in post composer

Hi, I'm having issues while trying to insert an html block into the post, when the block is inserted I cannot edit its content unless I click on the expanded tree, after that all the content I put inside the html it get erased and it does not display at all, also the spotify block doesn't work to, if I put the url of the song of spotify it says that the url is incorrect but I am copying using the option copy url directly form spotify, also if I put that url into my browser it takes me directly to the song so the url isn't the problem, please I need I quick response as I am using your component in a client site and I cannot deliver a not fully working component.

Thanks.