FLASH: Flash Bug Report

[Len Harrison]

We've found the following bug in Flash. Has anyone else noticed this or been

able to verify the cause?


Situation: Multiple .swfs on layers 2, 3, and 99. Layer 99 has global

control buttons to go to top of module and top of presentation. Layer 2 is

module. Layer 3 is current topic. Layer 0 is top of presentation. Nothing on

layer 1. Current active buttons on layer 99 and layer 3 which contains

primary content. Layer 2 is parked on a blank frame.


Triggers:

1) If a button on layer 3 is in close proximity to the buttons on layer 99

and the mouse is swept over these three buttons repeatedly and rapidly,

Flash crashes on NT 4 Workstation and Server. This applies to either player

or IE 4 and 5. In the case of the embedded movie, IE crashes. Have not

tested Netscape. This occurs within one to ten minutes usually but is not

fully repeatable.

2) If a button on layer 3 is distant from the buttons on 99 but is a large

button and has an action attached to it, sometimes the same effect can be

produced by clicking the button on layer three and then rapidly rolling over

the buttons on layer 99 while the .swf on layer three is still changing

state. In the case in point, a bitmapped screen shot shows a menu which,

when clicked, closes the menu. In this case, the button involved is

invisible on a layer in a movie clip of bitmaps. But in the previous case,

the button is a "normal" vector image. All examples do contain bitmapped

graphics.


Additional info:

The two buttons on layer 99 which are involved in this are actually

regrouped and resized full-screen images. So they have been reduced in size

many times (50-100 times smaller than their original size?). This might be a

factor. I don't know.


Possible cause: Don't really have one. Best guess is that multiple buttons

on different levels are trying to change states at the same time causing

unknown failure mode. Seems to require rapid triggering of over and out

states across buttons on different levels to occure. Example 2 would look

like a special case of the above. None of these buttons have any actions

attached to the over state, just highlighting.


Anyone have any ideas on what's happening? Has anyone ever seen this before?


len harrison

instructional designer

lenhabtcorp [dot] com

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