flash cs4 nothing visible in library or stage but can see it in swf

hi,

i'm not sure i've done - symbols, graphics, text visible in swf not on stage in workspace or in library.  wonder if i've accidentally reset something. trying import .ai graphic flash cs4 file when first happened - graphic not visible in workspace seen in swf. can't see in flash file open ones have been fine previously.  blank workspace , blank library window when select symbols in library. if try draw something, or insert text, disappears switch selection tool visible if @ swf (control enter). please - appreciated!

 

the project window white blank square in developer workspace too.

maybe ai graphis heavy , memory don't support show graphics.

 

copy file, change extention fla to zip, open file, delete graphic , return original fla extention

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