dont use binding mode twoway in address label field, prevents keyboard navigation.
MODIFY
WalletWasabi.Gui/Controls/WalletExplorer/ReceiveTabView.xaml
WalletWasabi.Gui/Controls/WalletExplorer/ReceiveTabView.xaml
<Grid ColumnDefinitions="*,300" DockPanel.Dock="Top" Margin="0 0 0 10">
<StackPanel Spacing="8">
- <controls:ExtendedTextBox Text="{Binding Label, Mode=TwoWay}" Watermark="Label (Required)" CaretIndex="{Binding CaretIndex, Mode=TwoWay}" UseFloatingWatermark="True" Grid.Column="0" Margin="0 0 10 0">
+ <controls:ExtendedTextBox Text="{Binding Label, Mode=TwoWay}" Watermark="Label (Required)" CaretIndex="{Binding CaretIndex}" UseFloatingWatermark="True" Grid.Column="0" Margin="0 0 10 0">
<i:Interaction.Behaviors>
<behaviors:SuggestionBehavior SuggestionItems="{Binding Suggestions}" />
<behaviors:CommandOnEnterBehavior Command="{Binding GenerateCommand}" />

dont use binding mode twoway in address label field, prevents keyboard navigation.