How can I make a selection Bold in Frame 11? The conventional methods are not working.

Apply a character format with font weight set to bold to the selected

text. If applying to a whole paragraph, use a paragraph format instead.

Be sure the font weight is Bold, not Bolded-- which shows up as a menu

choice when the bold font is missing.

Of course, you must have the bold font actually installed on your

computer in \windows\fonts.

re: I used the conventional methods as I did in the last few Frame versions

For why that might have worked, and now doesn't appear to, see also: Bold tag suddenly disappeared, can't reapply

Does the typeface that you are using actually have a bold family member?

You should be using a paragraph tag that includes bold as part of its definition; if you’re just selecting text and applying bolding to it (like via CTRL-B), then you’re creating an override that creates in-line styling.