Since the June 1st update, I cannot get my Storyline 360 course to load using the HTML5 with Flash fallback setting. Neither in Review, nor on the web. The circle just spins and spins, and the course never loads. If I republish as Flash with HTML5 fallback, it works in both places as a Flash object. I have tested it in 3 different browsers and on both Windows 10 and Mac. (And I made sure the browsers are current.) Anyone else having this issue since the update?
6/15 - Update on this, it's a project that was originally an SL2 file that I upgraded to 360. Also, I sent the file to a colleague to see if they could get it to work and they couldn't even get it to publish with any settings. Not sure if the file is corrupted.