Are fonts embedded?

I just experienced a font substitution problem with published output from Storyline 360. No variables (except for closed captions) and no text entry fields. The problems were in text boxes, shapes, captions, and even the player (similar to the last few comments in this thread before this one).

The problem occurred in IE 11; didn't check Edge yet. Everything was fine in Chrome and Firefox. (We're in a Windows environment.) The desired font was Open Sans. The substituted font in IE was some sort of Times. On my computer in IE, the substitution looked accurate and OK (though undesirable). However, on a colleague's computer in IE, the font was also some sort of Times, but some letters were dropped (frequently Fs) and kerning and tracking were pretty wacky throughout.

The publish settings were HTML5 with Flash backup.

Our work computers are pretty locked down; our clients are all in-house with the same system setups. We only use IE and Chrome, and which of the two we use depends which sites we access.

I'm wondering if IE being the infamously bad browser that it is and our IT department not really keen on using Flash in IE, that the HTML5 and Flash backup Storyline published outputs will look bad not matter what we do here because of our system environment. Chrome is fine.

So, 1) the HTML5 in IE is so bad/old that it doesn't render properly, and 2) IE won't use the Flash backup because HTML5 is detected.

I haven't tested a pure Flash output to see if it looks OK. But, doing so wouldn't be prudent because we need the HTML5 output due to waning support for Flash (especially in our IE setup).

At this time, it seems that the two likely solutions in our environment are to: 1) recommend users use Chrome, and 2) use common system fonts (e.g., Arial instead of Open Sans) in future projects.

Even though the issue seems primarily with our Windows and browser environment, this really shouldn't be happening IMHO. There's gotta be a better way. Any thoughts about this? Thanks!