Good news - sequences will be generated before entities in next version.
Concerning Order of Generated Objects - yes, there is a bug. It will be fixed for next version too.
Problem description: In current version, it is not possible to change order of first object in a group/category of objects. E.g. you have group Sequences and Sequence 1. You are not be able to put it at the top of the objects in the Order of Generated Objects dialog.
Current workaround: If you create another sequence, you can change its order now (order of Sequence 2).
Thanks for your co-operation!
Vladka + TDM Team