Problems with stairs

[t014000320]

When I try to create a staircase using the sketch tool, I have problems placing steps on a landing, for example:
- This step requires a straight step, forming a 90° angle. I place it and get the following error:

- However, when changing the step angle to 89°, modeling is allowed without any error, but the 3D modeling shows this error in the graph, leaving a gap between the steps:

Please help me with this problem.

[jay_colcombe]

Its not possible to create this scenario, it works with an angle as it thinks it may be a winder stair.

I would recommend creating one stair copying and then flipping the direction and editing the Levels

You could alternatively have 2 Stair runs and the Landing as another single step run?