Vault tooltip error


#1

After creating a vault, if you mouse over the toolbar, the following error occurs.
Why is this??

Uncaught TypeError: Cannot read properties of undefined (reading ‘tooltip’)
at HTMLUListElement.tooltip (vault.js:13)

I wonder how to solve it.


#2

COuld you please, provide an example, where the problem could be reconstructed locally.
As the following one:
https://snippet.dhtmlx.com/jnnl93ol
seem to work correctly.