Using Different Fonts in a Text Caption in a Responsive Project - Problem

I'm working on a project where if I change fonts in the middle of a text caption, I note some problems.

I created a new text caption. I selected Verdana Regular for the font. I typed some text, then changed to Verdana Bold. (Not the B button).

The resulting text looks like this in source:

However, when published, it looks like this. Note how the second "This is Verdana Regular again." looks different from the first.

Another little problem is that when opening the text caption in source again, if I double-click "This is Verdana Bold.", it shows correctly in the properties:

But if then click on the first or third sentence, I do NOT see this:

If instead I double-click the first or third sentence when opening the text caption, I will see Verdana Regular in the properties and clicking in the Verdana Bold sentence does not change the property to Verdana Bold.

Looks like bugs to me. Anyone else seeing this?