When selecting several blocks to make a custom block, if you drag the canvas (for example to make another block visible), the selection is lost and all the blocks must be selected again.
I'd expect the blue-highlighted (selected) blocks to remain selected even when the canvas is dragged.
When selecting several blocks to make a custom block, if you drag the canvas (for example to make another block visible), the selection is lost and all the blocks must be selected again.
I'd expect the blue-highlighted (selected) blocks to remain selected even when the canvas is dragged.