Exported SWF no longer loads

First post here, so if I’m doing it wrong I apologize.

I’m making an online portfolio in Unity, and when I first started working on it and implementing the basic functionality I made sure to avoid using features that the Flash converter didn’t play nice with (MovieTextures, GUIText, etc.) It did work at first; but now that I’m done and the file has all its assets dropped in, the exported swf no longer loads; I just get “plugin failure”. At one point the Flash Player plugin log was throwing an error regarding a timeout, but now the log won’t even register that error anymore for some reason, so I can’t post it here.

Are there any specific known issues with SWF exporting beyond what’s outlined in Unity’s documentation that could be causing this problem? I can post code/project files if that’ll help get to the bottom of this

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