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Level 4

1) -swf-version is not set when targeting 10.0; -swf-version=12 was set for FP 10.3 integration

2) Correct, LCCS v2.0.0/2.1.0 for Player10.0

3) Flex 4.1 SDK

4) No, non-LCCS elements do not show up

5) Both, Mac and Windows. Yes, Chrome, Firefox ( 3.6 and 7 ), IE 8/9

We found out where the problem lies; fyi our init process is 3 steps:

1) init data

2) connect to room - lets call it lobby view / intermediate room that has no significant UI to indicate we are connectingto LCCS room

3) and finally the full UI that a teacher / student sees

When we get the room URL we also destroy the 'lobby view' room right before rendering the video/audio/full UI to the user. At this point we set the instance to null "_lobbyView = null". Somewhere later in the code _lobbyView is referenced but it's null even though we have null checks around all of _lobbyView instances :confused_face:

This line of code causes a Flash RTE but ONLY in a non-debug version of FlashPlayer 11 and I think we are now finding evidence that this issue has been happening in FlashPlayer 10.3 but much rearer. So after our users started upgrading to Flash Player 11 we started seeing the problem show up very frequently. Without code changes on our end, it's odd that upgrade to either the LCCS lib (to Player10.3 lib) or FlashPlayer itself we start seeing this problem come up.

Thanks for the quick response

Alex G.