Weird MAC Flapping seen on wireless

I am seeing some weird MAC flapping being reported by my cisco switches.  When looking at a MAC table it would shows the same MAC on two different VLANs.

Any ideas
nh6weAsked:
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Craig BeckCommented:
You'll see this if clients are roaming frequently.
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nh6weAuthor Commented:
So is this a normal occurrence?
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Craig BeckCommented:
Yes, especially where you're using FlexConnect.
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nh6weAuthor Commented:
As always, thanks for the help Mr. Beck
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nh6weAuthor Commented:
Do you know if the MAC flapping will cause any performance issues?  I am seeing alot of logging
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