Driver Chart Tooltip show `undefined` for position

[loljoho]

Describe the bug
On the Driver Career Stats page, the tooltip in the position/points chart displays value undefined for position if the driver has more than 50-60 races. For drivers under 50-60 races (51 is as closest as I can get to a cutoff) it displays properly.

Strangely, if you go to /drivers/max_verstappen, for example, some of the values display properly, whereas others do not.

This issue has already been created in the Chart.js repository (see below). It seems to be linked with the use of category as the y-axis type.

To Reproduce
Steps to reproduce the behavior:

1. Go to any driver's /driver/:driverId page who has more than 50-60 races
2. Hover over the chart to display the tooltip
3. See "Position: undefined"

Expected behavior
It should display the position value!

Screenshots
If applicable, add screenshots to help explain your problem.

Additional context
Bug has been reported in Chart.js repository back in August: chartjs/Chart.js#5708

[loljoho]

Considering building own wrappers for D3.js in lieu of Chart.js and react-chartjs-2

[loljoho]

Seems to have been fixed back in December: chartjs/Chart.js#5920

Note: react-chartjs-2 has not been updated since summer 2018.

[loljoho]

chart.js is updated to 2.7.3, but the problem persists.

Looking into alternative charting libraries.