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1
Vote

Hi,

When the `showAddButton` is set to true in the columns and the button is clicked, the following error appears:

```

Error: Cannot read properties of null (reading 'getAttribute')

```

I've seen the error only happens in columns where there is at least one card, if that column is empty the error does not happen and the card is added.


It also seems like the cards can't be dropped into the "Done" column.


You can find an example and test the bug here: