Area Boundary not visible

[johannes_steidleTZK2Q]

I'm encountering an unusual issue with the visibility of area boundaries.

I'm working in a ground floor with an activated view template that sets the discipline to "plumbing."

I can draw my area boundaries, but as soon as I finish drawing, they disappear.

Initially, I suspected it was due to the discipline setting. However, when I add a toposurface to the project, the boundaries become visible. Conversely, if I remove the toposurface, the boundaries disappear instantly.

Could someone please clarify this phenomenon?

[barthbradley]

Areas only appear on Area Plans. 

Create an Area Plan

https://help.autodesk.com/view/RVT/2022/ENU/?guid=GUID-D237E6DA-CC5B-4BBE-86E1-3C8AC28CF8AF

[johannes_steidleTZK2Q]

I am sorry, i wasn´t clear. 
i work already in an area plan. 

[barthbradley]

Sorry. I misread you. Post your RVT here.  

....Are you sure it's not visible? Area Boundaries should show as Halftone in Plumbing Discipline. 

  https://help.autodesk.com/view/RVT/2022/ENU/?guid=GUID-5D8831F6-6F15-4BF3-ACEB-06FBC14A5491   

[johannes_steidleTZK2Q]

Unortunately, I can´t post the original file. 
I just startet a new file and tried to reproduce the bug. Now everthings works fine. 

Area boundaries are now in Halftone. 

Thanks for jour help! 

[barthbradley]

You had to start a brand new Project to resolve???  That's a little extreme - as well as impractical.  I'm sure there's a resolution that doesn't involve starting a Project all over from scratch. I'm sure it's not a "bug". I would bet money that it's a Project setting.   

BTW: if it is a "Bug" like you think (I  don't), wouldn't the same thing eventually happen again in this new Project?    

[johannes_steidleTZK2Q]

No i do not have to start a new projekt. 
As i said, the area boundaries just dissapear when there is no toposolid in the project. 

I attached a video, for me it still looks like a bug. 

I also send you a dm. 

Thanks for your help!