Nasty bug in Gantt chart milestone placement

Question

Milestone placement is completely wrong in this example (happens with latest 1.2020.12).

@startgantt
scale 2.0
printscale monthly
Project starts the 1st of May 2020

[TASK1] lasts 12 weeks
[TASK2] lasts 4 weeks
[MS1] happens at 0 days after [TASK2]'s end

[TASK1] -> [TASK2]
@endgantt

Comments

As workaround, put milestone after dependency

:

@startgantt

[TASK1] lasts 12 days
[TASK2] lasts 4 days
[MS1a] happens at 0 days after [TASK2]'s end
[TASK1] -> [TASK2]
[MS1b] happens at 0 days after [TASK2]'s end

@endgantt

---

Thanks for the workaround, but in my case the real chart is a lot more complex and I cannot get it to render properly if I change the order as you suggested.

It also would become quite messy because in practice you would want to keep the inter-activity dependencies separate from the activity-related data.