solver

What are trying to do?

When the program auto builds walls, it marks them as No Room Definition. I would check each wall surrounding the problem room, and clear this setting if it is set. Attaching a screen capture or two is usually helpful too so we see what you see. A 3D overview using Vector View is usually best.

Open Help, search Pointer Icons.

I see it's missing from the opening left of the sink too. Have you made changes to your wall definitions? If you will attach the plan, I'll have a look. A layer of paint added to your wall definition is the usual cause.

Has to be done manually.

A couple of suggestions. Since you have Pro, searching ChiefTalk will often find a solution to problems like this, but please don't start asking questions there. I have a How To Search video on YouTube that works for both HomeTalk and ChiefTalk. I would make this change to your template file. See my YouTube channel for a video. And good job on describing the problem and providing a simple test plan.

My suggestions above should get you there.

It's not clear what you want to do -- how the shelf unit is located in relation to the sloped ceiling. A screen capture (usually Vector View works best) of the area and maybe one showing the area on the plan would be helpful. You will need to model this from parts -- partitions, shelves, and probably a sloped soffit for the top. You can also make a thick wall -- here I used 24", insert a Wall Niche, change the shape and add cabinets/cabinet parts inside.

Read about Roof Cuts Wall at Bottom and Lower Wall Type When Split By Butting Roof. Use one or the other depending on your needs.

Open the stair and and look at the Fill options. Since you are looking for an architect, I'd focus more on the ideas and less on the details. Architects are trained to design and many will prefer to do so and not take a plan, draft it and stamp it as it does not represent their work. They will understand codes related to stair railings, for example. And I have not seen your plan, but it's very rare that I see a good DIY plan. If you want some honest but usually brutal feedback, post over on houzz https://www.houzz.com/discussions/building-a-home.

Are we looking at a PBR from 2021 showing two plans?

Try zipping it, or use Edit Area to cut out that part of the plan.

Probably. Attach the plan file and I'll have a look.

Select everything and move it.

Display is controlled via layer settings. Each camera has an associated layer set that controls what is shown.

Close Pro, attach the plan file and I'll have a look.

No one can decide that but you.

Roofs build over rooms and their height is controlled by the rooms ceiling height.

I'd use landings.

Make it smaller. Zip it, and or delete things unrelated to the structure.

It's helpful to have the plan file to work with. Often difficult to understand a problem looking at an image. Close Pro before you attach, and there is a 14MB size limit. Here is a similar structure and a setting you might experiment with. And the wall on the inside.