Going daft here. I’ve opened up a Blocs 2 site in Blocs 3. As expected, some issues with the hamburger menu, etc, which I’ve put right.
However, the change has altered the look/font of several headlines, which no amount of changing in the class editor or side panel will put right.
Help appreciated. As mentioned before, it could be me because I am only an occasional user of Blocs, but I’ve revised class creation etc, and I cannot see where I am going wrong.