Commit: e965529
Chrome version: 83.0.4103.116
Edge version: 44.18362.449.0

Since commit aee5bd4, the series' label are not displayed anymore, except for labels A, B & C (which are the labels of the example). In addition, if the window is too small, all labels can be hidden, even the vertical axis values. This behaviour was observed on both Chrome and Edge.