FlxInputText Crashes when given a background color

When providing a background color for FlxInputText widgets via an XML generated FlxUI the game crashes with this error:

Uncaught TypeError: Cannot read property 'bitmap' of null
    at flixel_graphics_tile_FlxDrawQuadsItem.render (:8080/static/games/tinsdalia-hf/Tinsdalia/export/html5/bin/Tinsdalia.js:39151)
    at flixel_FlxCamera.render (:8080/static/games/tinsdalia-hf/Tinsdalia/export/html5/bin/Tinsdalia.js:7238)
    at flixel_FlxGame.draw (:8080/static/games/tinsdalia-hf/Tinsdalia/export/html5/bin/Tinsdalia.js:10397)
    at flixel_FlxGame.onEnterFrame (:8080/static/games/tinsdalia-hf/Tinsdalia/export/html5/bin/Tinsdalia.js:10229)
    at openfl_events__$EventDispatcher_Listener.f [as callback] (:8080/static/games/tinsdalia-hf/Tinsdalia/export/html5/bin/Tinsdalia.js:124503)
    at openfl_display_Stage.__dispatchEvent (:8080/static/games/tinsdalia-hf/Tinsdalia/export/html5/bin/Tinsdalia.js:1086)
    at openfl_display_Stage.__dispatch (:8080/static/games/tinsdalia-hf/Tinsdalia/export/html5/bin/Tinsdalia.js:2002)
    at openfl_display_Stage.__broadcastEvent (:8080/static/games/tinsdalia-hf/Tinsdalia/export/html5/bin/Tinsdalia.js:113546)
    at openfl_display_Stage.render (:8080/static/games/tinsdalia-hf/Tinsdalia/export/html5/bin/Tinsdalia.js:113360)
    at Array.f (:8080/static/games/tinsdalia-hf/Tinsdalia/export/html5/bin/Tinsdalia.js:124503)
:8080/static/games/tinsdalia-hf/Tinsdalia/export/html5/bin/Tinsdalia.js:124444 Uncaught TypeError: Cannot read property 'setMode' of null
    at resize (:8080/static/games/tinsdalia-hf/Tinsdalia/export/html5/bin/Tinsdalia.js:124444)

Reproduce the HTML5 crash with an XML-generated FlxUI containing a FlxInputText background color, then trace the FlxInputText rendering path from the reported FlxDrawQuadsItem.render stack frame. Check both the bitmap-null error and the resize setMode error; done means the widget renders and resizes without either exception.