Dependency not launching when thread available

[cubewise-gng]

I have setup the task dependencies as below

id="1" predecessors="" require_predecessor_success="" instance="tm1serv" process="ProcessOne" pParam="A"
id="2" predecessors="1" require_predecessor_success="" instance="tm1serv" process="ProcessTwo"
id="3" predecessors="" require_predecessor_success="" instance="tm1serv" process="ProcessOne" pParam="B"
id="4" predecessors="3" require_predecessor_success="" instance="tm1serv" process="ProcessFour"

But noticed RushTI is not launching the dependent tasks when threads become available.
Instead it would wait for both tasks 1 and 3 to complete before launching 2 and 4.

I was expecting for an available thread to be utilised by 2 if 1 is complete, or 4 if 3 is complete. Whichever finishes first.

1 and 3 are both running the same process with different parameters, but they have different id so should be independent when referring to them as predecessors. But it seems to treat 1 and 3 as the same and wait for them altogether.

[MariusWirtz]

Correct. It is treated as one "level" in the code.
I believe this is the same request as in #30

@cubewise-gng
Please feel free to improve the creation and handling of the levels in the code.