Fatal Content Error in Web Player with Animator and Sprites

I’ve created a sprite animation by opening the animation windows, creating the animation and then dragging the sprites onto it so that an animator is created automatically. It works fine in the editor, standalone and on Android but the webplayer crashes with a “Fatal Content Error” before loading the scene.

I’ve double-checked if it’s rellay the animator that causes the error: when I deactivate the animator script the game runs in the browser, when I activate it it crashes.

Has anybody an idea how to fix this? I really need those sprite-animations.

Created a fresh new test project with a single animated sprite and it crashes again. So 100% reproduceable on my machine. Just uploaded a bug report.

I have same problems in unity 5.1.2p2.
When I uncheck all animator stuffs, web player can operate without error message “Fatal Content Error…”
Is the same issue such as Mecanim is causing the Webplayer to crash - Unity Engine - Unity Discussions

Erm… seems fixed now all of a sudden. Was there a silent Web Player Update? (it took quite some time to load the first time)

I also made sure that the problem has been fixed in version 5.1.3f1. Wow!

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