Corridor can't distinguish right and left of sub assembly

[andrewsH7HB7]

(civil 3d: 2019)

When creating an assembly, I select the subassembly BasicLaneTransition, select RIGHT on the properties window and add it to the assembly. Then I select the subassembly again and select LEFT on the properties window. When I add it to the assembly, it also goes to the right. So I delete it and just mirror the right side. When I do this I get a dialogue box that states " are you sure you want to mirror the subassembly to the same side?" (see image "dialogue box" below). I click okay and the subassembly appears to mirror the way I want it to (see image "SA w prop L & R"). Then, when I am trying to set the targets in parameters in the corridor properties window both of the subassemblies are treated as going to the right (see image "assembly group both R"). 

Thanks!

[Jeew-m]

Hi,

Instead of doing it twice click the assembly twice at once.

I mean when it attached to left of the assembly, without changing anything on the properties window click on the assembly again. It will automatically go to right.

Thanks

[andrewsH7HB7]

I'm sorry. I don't understand what you mean.

I have tried many alternatives to try solving this as it has been happening to me and all my coworkers. we all have a slightly different "fix" for the issue, but none of them actually fix the underlining issue. I really think this is a bug.

[jeff_rivers]

You aren't seeing things, there is definitely something different in the workflow for creating an assembly with left & right sides.  I don't recall exactly which version changed it, but sometime between 2016-? and 2018 the workflow changed.  Previously it worked as you describe, you selected the left or right side in the properties pane, and the subassembly inserted on the selected side. 

Now it's more opaque - I can't figure out what one does to force a subassembly to the desired side, because selecting the side in the properties pane does not affect it.  

[Jeew-m · Accepted solution]

Please watch THIS.

[andrewsH7HB7]

Wow! that totally worked! thank you so much!