Odd behavior with Main Nav text

Using 3.4.0 for the first time here. Have run into an odd issue where the text that I place in the SEO Title box (in Page Settings) is wrongly applied to the Navigation text. See screenshots. @Norm, this is clearly a glitch you’ll want to fix ASAP. I had to correct it manually in the HTML post export as there was nothing wrong with the way I had it set up in Blocs and no way to prevent it from happening there.