This issue seems to remains for flowchart as can be seen below in comparison with graph, sure flowchart is beta but should be a simple fix I’m assuming.
```mermaid
graph TD;
A[Lots of text];
B[Lots<br>of<br>text];
C{Lots<br>of<br>text};
A -->|one| B;
B -->|two| C;
C -->|three| A;
flowchart TD;
A[Lots of text];
B[Lots<br>of<br>text];
C{Lots<br>of<br>text};
A -->|one| B;
B -->|two| C;
C -->|three| A;
This is running on 0.12.15, Windows 10, and Chrome Version 94.0.4606.71 (Official Build) (64-bit).