What steps will reproduce the problem?
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What is the expected output? What do you see instead?

What version of the product are you using?
R: 4.4.15 for 4.0.3a

Do you have an error log of what happened?
11/25 11:03:28.446  An action was blocked in combat because of taint from Bartender4 - BT4Button50:SetAttribute()
11/25 11:03:28.446      Interface\AddOns\Bartender4\libs\LibActionButton-1.0\LibActionButton-1.0.lua:1144 method()
11/25 11:03:28.446      Interface\AddOns\Bartender4\libs\LibActionButton-1.0\LibActionButton-1.0.lua:606 ForAllButtons()
11/25 11:03:28.446      Interface\AddOns\Bartender4\libs\LibActionButton-1.0\LibActionButton-1.0.lua:655
11/25 11:03:28.446  An action was blocked in combat because of taint from Bartender4 - SecureHandlersUpdateFrame:SetAttribute()
11/25 11:03:28.446      Interface\FrameXML\SecureHandlers.lua:690
11/25 11:03:28.446      Interface\AddOns\Bartender4\libs\LibActionButton-1.0\LibActionButton-1.0.lua:1145 method()
11/25 11:03:28.446      Interface\AddOns\Bartender4\libs\LibActionButton-1.0\LibActionButton-1.0.lua:606 ForAllButtons()
11/25 11:03:28.446      Interface\AddOns\Bartender4\libs\LibActionButton-1.0\LibActionButton-1.0.lua:655

Please provide any additional information below.