`after` breaks Gantt chart in this example

Copy/paste the following into mermaid-live-editor

gantt
  dateFormat  YYYY-MM-DD
  title       Gantt chart

  section Test
  fase 1      : 2020-06-01, 1w
  VM          : ps2, 2w
  Config OS   : after ps2, 1w

which produces this broken Gantt chart.

Notice Config OS does not come after VM which it should.

Works when removing the dependency.

gantt
  dateFormat  YYYY-MM-DD
  title       Gantt chart

  section Test
  fase 1    : 2020-06-01, 1w
  VM        : 2w
  Config OS : 1w

Mermaid: 8.5.1

[hacst]

Also ran into this unexpected behavior. Took me quite a bit of trial and error to figure out what was wrong. How would a user find out about such syntax restrictions? https://mermaid-js.github.io/mermaid/#/gantt does not state it and if you start out naively writing your diagram

gantt

Foo: foo, 1d

does what you would expect. It shows a 1 day box from the current date line. No indication about this being a syntax error.

[zats]

@Rutorai I will second the sentiment here, it is not immediately obvious why specifying ID on the element is tied to specifying its start date explicitly?

in the example

gantt

  section Project A
  Task A-A: 2022-12-01, 1d
  Task A-B: idAB, 1d
  Task A-C: 1d

  section Project B
  Task B-A: 1d
  Task B-B: after idAB, 1d

Since Task A-B start time can be calculated from all the data provided

It would be very convenient if Task B-B would automatically start after Task A-B without user calculating setting Task A-B start date to 2022-12-02