Tooltip jumping around when using bar chart in ShadowRoot

[BeWoFinum]

Description

When hovering over a bar in a bar chart the tooltip first appears in the correct position, then jumps to the far left edge of the chart.
This only happens when the chart is rendered in a ShadowRoot.

From what i could find:

• It does not happen in line charts.
• It does not happen when options.tooltips.insersect == false.
• It does happen with multiple series of bars.
• It does not happen in horizontal bar charts.

Steps to Reproduce

1. Move the cursor over a bar.
2. The tooltip appears and jumps to the left moments later.

Expected Behavior

The tooltip stays in position somewhere close to the bar, until the cursor is moved away.

Actual Behavior

The tooltip quickly moves to the left edge of the chart.

Screenshots

Reproduction Link

Bar chart example (this doesn't work as expected):
https://codepen.io/BeWoFinum/pen/abeRdKV

Line chart example (this works as expected):
https://codepen.io/BeWoFinum/pen/jOgeWdq