Tell us about your environment
macOS Mojave 10.14.5
Firefox 67.0.2 (64-bit)
16.1.1 (Build 4)
What did you do? Please explain the steps you took before you encountered the problem.
Installed Bodymovin via https://www.adobeexchange.com/creativecloud.details.12557.html (also tried from GitHub repo at https://github.com/airbnb/lottie-web/tree/master/build/extension)
Opened stock animation teamwork_13.aep in After Effects
Selected teamwork_13 in Bodymovin, selected Desktop as destination
Pressed Render (using Demo setting)
Realized shapes are broken opening demo.html in Firefox
Looked at preview in Bodymovin, same issue
What did you expect to happen?
I expected the demo would look the same as exporting to video
What actually happened? Please include as much _relevant_ detail as possible.
What it should look like:

What it looks like in preview:

Probably a newbie config error but can鈥檛 figure it out after spending half an hour searching the web. Hope someone can help.
Please provide a download link to the After Effects file that demonstrates the problem.
Hello, great art, and good news! It is indeed a very simple config error. Make sure that "Hidden" and "Guides" are enabled in your config:

Which produces the correct positioning for limbs:

As a general rule of thumb, I've noticed that whenever I have layers/shapes unexpectedly going to the top left of the screen, it's because I'm missing a layer in my parenting chain so it's position defaults at [0,0]. In this instance, the BaseHose of a Rubberhose arm (the actual stroke) is trying to find two guide layers (Wrists and Shoulders) and use their positioning as a reference -- but unless the config includes Guided layers, the Basehose doesn't find any layer to correctly reference and defaults to [0,0] (which is the exact top-left corner of the animation).
Amazing, thanks so much @Inventsable!
No problem! Have fun with the library, should work well for such great art.
Shout-out to Pijus for the artworks. 馃檶
Hello, great art, and good news! It is indeed a very simple config error. Make sure that "Hidden" and "Guides" are enabled in your config:
Oh gush! Thanks a lot!
Thought to open a new RubberHose/Lottie export issue topic but have found this one :)
Most helpful comment
Hello, great art, and good news! It is indeed a very simple config error. Make sure that "Hidden" and "Guides" are enabled in your config:
Which produces the correct positioning for limbs:
As a general rule of thumb, I've noticed that whenever I have layers/shapes unexpectedly going to the top left of the screen, it's because I'm missing a layer in my parenting chain so it's position defaults at [0,0]. In this instance, the BaseHose of a Rubberhose arm (the actual stroke) is trying to find two guide layers (Wrists and Shoulders) and use their positioning as a reference -- but unless the config includes Guided layers, the Basehose doesn't find any layer to correctly reference and defaults to [0,0] (which is the exact top-left corner of the animation).