item not showing in bubble chart

[vaadin-bot]

Originally by Mingjie

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the smallest radius item in bubble charts never show. If you count the total items, it always less than the source. When you hide all other series in the ledgend, somethimes it will show up if all other items are hidden.

This error happens consistantly in my bubble chart. And can be duplicated in the offical demo website: If you go to vaadin chart demo, -> bubble chart. hide 2nd series. the Series-1 shows 13 bubbles. However, if you count the items in source code, there are 14 items.

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Imported from https://dev.vaadin.com/ issue #17233