I have found an issue about elements grouping and then sorting them in task Gantt view.
I have task list where i store my items, there are two content type: project stages and simple tasks. Every task belongs to project stage, the relation is stored in lookup field (Stage).
I want to group tasks by stages, ordering them by stages names in ascending order00. (Stages names could be 01. Project planning, 02. Working, 03. Testing....).
I can achieve this in all items simple view, but when i try to do this in gantt chart, the stages are always sorted by Stages ID's: it doesn't matter if i set the grouping option to other relation lookup column (Stage:Title, Stage:Start date).
I attach two images: allitems and gantt, in the both views the grouping settings options are the same, ordering option is not set, because it doesn't change the working way. As you see in the gantt chart the project stages "03. Testing" and "02. Working" are not sorted the way i want (the are switched order).
Maybe someone know to deal with that? If there is workaround or fix?
gantt: http://sportisima.lt/image/data/demo/gantt.gif
All items: http://sportisima.lt/image/data/demo/alltask.gif