Can you please provide details about the sdk and versions you are using?
If you are using old sdk, try updating it to new one and then check.That might help.
Hi, I'm using the SDK 4.6
My guess would be this very small % of people don't realize you have to click the DONE button first. Make this button pulsate, and perhaps the complaints drop off. 1% of your users being a bit slow is certainly well within believable limits.
That or - alternative wild speculative guess - they are using very old versions of the flash player.