I use a XamTileManager with the following normal mode settings:

TileLayoutOrder="UseExplicitRowColumnOnTile" AllowTileSizing="Individual" HorizontalTileAreaAlignment="Stretch" VerticalTileAreaAlignment="Stretch"

With these settings, a new XamTileManager will default with each tile having an equal size. The users can then manually resize the tiles by dragging columns/widths in the typical grid-like fashion.

I have a command in my application that allows the users to restore the tiles to their default size where each tile is the same size. To achieve this, I used to keep a copy of all tiles, clear the tiles from the manager, and then re-add the tiles to the manager. Following these steps had the effect of resetting the tile sizes. However this no longer works in V15.1. When I do this, the tile buttons (maximize/close) no longer work. It's as if they're disconnected from the manager. I spent some time trying to find a way to reset the row/columns without removing the tiles, but can't find anything that's exposed. Is there a way to achieve a reset of XamTile sizes? I'm aware of the PersistenceManager, but that won't work in this case. I need a way to default XamTile back to sharing equal space at any time.

Thanks.