add missing binding.
MODIFY
WalletWasabi.Fluent/Views/Wallets/Home/Tiles/WalletPieChartTileView.axaml
WalletWasabi.Fluent/Views/Wallets/Home/Tiles/WalletPieChartTileView.axaml
mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
x:CompileBindings="True" x:DataType="vm:WalletPieChartTileViewModel"
x:Class="WalletWasabi.Fluent.Views.Wallets.Home.Tiles.WalletPieChartTileView">
- <controls:TileControl>
+ <controls:TileControl TileSize="{Binding CurrentTileSize}">
<wpc:WalletPieChartSmallTileView />
<controls:TileControl.LargeSizeContent>
<wpc:WalletPieChartNormalTileView />

add missing binding.