Possible bug in microsoft/arcade-grid

My son is making a game that uses microsoft/arcade-grid and also has its own menu system. He wrote a button event handler for the right button for the custom menu functionality. But it seems like that interferes with arcade-grid’s grid move [sprite] with buttons block.

Here is an example that illustrates the problem: https://makecode.com/_Uy8JFPECwgCe

Notice how the pizza happily moves in all directions but right. A handler for right button events exists, but it does not do anything.

@darzu ^^