Perfect. Thanks for your help.
Great! Thanks for the explanation.
I’m having the exact same problem. I’ve tested Pages, Posts and Custom Posts. All of them redirect, however, none of them open in a new tab, even though “open link in a new tab” is checked.
I had the same issue using WP 5.4.1 and the Blocks Editor with CPTs. I installed the Classic Editor and this resolved the issue for me. There seems to be some conflict wit the Blocks Editor.