I have a weird issue showing up on my tenant. I have a hub site (newly created) called Project Hub and I associated a new site collection (called Issue Tracking System) with this hub site. I am using the Sites web part to show the associated site. I use the selection option, "All sites in the hub", and I see the 1 associated site. However, the title of the site does not show up. It comes through as 'Home' (screenshot below).
The weird thing here is, if I change the selection option as "Select sites", I can see the site before selecting (the name appears as 'Home' with the checkbox), the site's true name appears (as expected).
I definitely think this is a bug, but wanted to see if anyone else has come across this issue and raised it with Microsoft.