The block "Insert code on the page" in the personal account does not work correctly

I add several such blocks to one page. In one html block, I simply write the text https://prnt.sc/THcQOqycsOXc Then I add another script block and write styles in it, put a checkmark to add to the head https://prnt.sc/fc-Kyma5foD4 In this case, the style is not displayed on the page, but the text from the previous "Insert code on page" block is simply duplicated. https://prnt.sc/RigJEkrBsGEX Also, if there are several blocks with html text on the page, the block with the style duplicates the value of the block after which it stands.