[V8i InRail VBA] SmartSolidElement and Advanced Settings - Solids Area.

Hello

Here is a really strange one.

i create pipeline with code like this:

Set oConeElm(0) = CreateConeElement2(Nothing, 1, oPoint(0), oPoint(1))
Set oConeElm(1) = CreateConeElement2(Nothing, 1.1, oPoint(0), oPoint(1))
Set oSolidEnum = SmartSolid.ConvertToSmartSolidElement(oConeElm(0))

    While oSolidEnum.MoveNext
        Set oSolidElm(1) = oSolidEnum.Current
    Wend

    Set oSolidEnum = SmartSolid.ConvertToSmartSolidElement(oConeElm(1))
    While oSolidEnum.MoveNext
        Set oSolidElm(2) = oSolidEnum.Current
    Wend

Set oSolidElm(0) = SmartSolid.SolidSubtract(oSolidElm(2), oSolidElm(1))
ActiveModelReference.AddElement oSolidElm(0)
oSolidElm(0).Redraw
oSolidElm(0).Rewrite

So its easy, basic pipe from one point to the next. And it works fine. Until i invoke anything from inRail for example load dtm into surfaces. anything.
repeating this code throws the pipe far away in coordinates.

I tried to debug it by all means. i dag through activesettings watch. finally i measured the distance by the pipe is thrown away and it was roughly times 429.
Again i ran through all the settings and stumbled upon Settings -> Design File -> Working Units -> Advanced Settings, there it was in Solids Area. when i changed it to 1 everything went back to normal.

Here is a flick that shows exactly whats going on:

[View:https://youtu.be/ERHAbfzJPXI:940:0]

I red the description of that setting and it shouldn't be related to this and it only happens in the relation with inRail. I don't feel very competent to call it a bug, but it looks like so.
the next solution i tried to apply was finding the setting in VBA responsible for this Solids Area,but simply cannot find it.

I did record it and got a hazy code which doesn't work when replayed.

The closest topic I found on this forum is:

https://communities.bentley.com/products/microstation/f/273/p/89197/253701

but it didn't solve the issue.

I need to find a setting to set it to 1 at the start of the code and set it back to its original value at the end. Preferably without recording (it doesnt work anyway and it also creates a little popup of settings). Or maybe some other way to avoid this solid misplacement. To avoid misunderstanding - I dag through help, F2 - methods, settings, watches, debugging etc so i really don't need a lecture on basics. to anyone who can help - thank you in advance.