Runtime binding change + unexpected event firing issue WPF

I change binding at runtime with datatriggers in XAML like this:

<ToggleButton Checked="MinSyncX_OnChecked" Unchecked="MinSyncX_OnUnchecked" TargetUpdated="FrameworkElement_OnTargetUpdated"
                                        Tag="{Binding Path=CameraViewDirection, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}"
                                        ToolTip="{Binding Source={StaticResource CameraLocalization}, Path=ToolTips.SyncX, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}"><ToggleButton.Style><Style TargetType="ToggleButton" BasedOn="{StaticResource CameraSyncCommonStyle}"><Style.Triggers><DataTrigger Binding="{Binding Path=CameraViewDirection.Limitations.UI.SelectedLimitation.W, NotifyOnTargetUpdated=True, NotifyOnSourceUpdated=True, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}" Value="0"><Setter Property="IsEnabled" Value="{Binding Path=CameraViewDirection.Limitations.UI.IsMinTripleEnabled.X, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}"></Setter><Setter Property="IsChecked" Value="{Binding Path=CameraViewDirection.Limitations.UI.IsMinTripleChecked.X, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"></Setter></DataTrigger><DataTrigger Binding="{Binding Path=CameraViewDirection.Limitations.UI.SelectedLimitation.W, NotifyOnTargetUpdated=True, NotifyOnSourceUpdated=True, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}" Value="1"><Setter Property="IsEnabled" Value="{Binding Path=CameraViewDirection.Limitations.UI.IsMaxTripleEnabled.X, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}"></Setter><Setter Property="IsChecked" Value="{Binding Path=CameraViewDirection.Limitations.UI.IsMaxTripleChecked.X, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"></Setter></DataTrigger><DataTrigger Binding="{Binding Path=CameraViewDirection.Limitations.UI.SelectedLimitation.W, NotifyOnTargetUpdated=True, NotifyOnSourceUpdated=True, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}" Value="2"><Setter Property="IsEnabled" Value="{Binding Path=CameraViewDirection.Limitations.UI.IsBothTripleEnabled.X, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}"></Setter><Setter Property="IsChecked" Value="{Binding Path=CameraViewDirection.Limitations.UI.IsBothTripleChecked.X, Mode=TwoWay, UpdateSourceTrigger=PropertyChanged}"></Setter></DataTrigger></Style.Triggers></Style></ToggleButton.Style><ToggleButton.Content><Image Source="{Binding Source={StaticResource CameraIcons}, Path=XAxis, Mode=OneWay, UpdateSourceTrigger=PropertyChanged}"></Image></ToggleButton.Content></ToggleButton>

Everything seems fine - binding really changes, but I have one issue which I don`t know how to solve: When binding changed, MinSyncX_OnUnchecked event firing even if binded value is true which means that ToggleButton must stays checked after binding change. Firing of this event during binding switching braked my code, so I wish to now how to suppress this event during binding change if IsChecked property must be set to true.

A little tricky, but I hope you will understand my problem.

Edit

One thing I noticed that unchecked event ALWAYS fired if data trigger value switched to the first in list. Even it has a value=1 or value=2. Does this by design or it can be fixed somehow?