Storyline block autoplay in Rise

Running into this problem on our end, too, and am currently troubleshooting for the best solution. To begin with, I really just want to use the built-in media player within Rise. It works exactly how we want, it just doesn't do captions. Embed media players with caption toggles won't work either, because the learner can skip the video without it completing. So here we are, building a SL block per video.

This would work fine-ish, if it weren't for a very persistent auto-play feature for Storyline, which means all the videos startup at the same time after you have visited the site once and 'cleared' the continue blocks. 

Does anyone have a way to make a Storyline video not auto-play while keeping the seekbar and media in-sync?

Here are the workarounds I've tried:

• Pause timeline trigger when slide loads, so it never autoplays
  • This separates the timeline seekbar from the media. If I pause or start the video by clicking the video, it starts the video, but not the seekbar. This is really confusing UI.
• Any triggers that try to pause the timeline OR pause the video if the video has been viewed
  • See triggers. I've tried pausing timeline, pausing media. Nothing. I've tried lots of these.
  • The slide is set to resume saved state.
  • I've even put the variable in text on the slide, and it won't "remember" that it was changed to true when I revisit. It will flip to true, then on revisiting, it flips back to false. How can it retain these triggers? Again, slide set to resumed state.
• Set media to play only when triggered/clicked.
  • This again separates the seekbar from the playbar. The user stares at a black screen while the timeline is going. I thought something was broken before I realized I had to click the video. 
• Removing the seekbar and only using the video player controls.
  • Ok, I'd have to make the story size bigger on all 19 videos. This is probably my next thing -- but really?

Again, this is a LOT of work to just get captions to work.

Thanks!