That almost did the trick – but the title of the post is still missing in Chrome. Screenshot here has Safari on the left and Chrome on the right, so you can see the difference: https://ibb.co/8KBDSrM
I also noticed that, upon saving the page then opening it again in the WP editor, to edit further, each “Posts” block reverts back “All” in the “Feed Settings” —> Categories.
In other words, every time I make an edit to the page, I have to change the “Feed Settings —> Categories to the correct category for every block on the page. When I save it, it works and displays the categories I selected. But when I return to edit something on the page later, they all revert to “All” for Categories and I have to go select each category for each block again.
Thanks Pavle, you can find the page I’m using the “Posts” block at: https://www.samanthakane.us/library/