Flash CS5 AS3 - runtime error with text box

Question

I get the following runtime error due to my text box:

Error: SymbolClassLoader can't find Resource with id = 2, name = 'Cube_Inventory_HUD__LoadingAnimation__'
Error: SymbolClassLoader can't find Resource with id = 3, name = 'Cube_Inventory_HUD__Content__'
Warning: The method Loader::loadBytes() is not implemented

None of my sprites/symbols appear because of this error, just a blank white stage when I run.
When I delete the textbox and run, everything runs fine and all my sprites/symbols appear as expected.

Additional information:
The name of my .fla and .as files is Cube_Inventory_HUD.
Note that I'm compiling/running the .swf in Scaleform Launcher's FxMediaPlayer as I'm making some scaleform UI for UDK.
The text box I'm using is TLF Text, Editable (because I intend to change the text at runtime later using ActionScript). The font is Arial, Bold.
The actionscript code in the .as file is just the default one; I haven't typed in anything extra yet.

Answer 1

TLF textfields are not currently supported in Scaleform. Instead, use Classic Text.

Answer 2

I'm pretty sure Scaleform doesn't support TLF text yet. At least it hasn't ever worked for me. Try making the text box using classic text.