Is your deck direction correct? Is it assigned in both floors going the same direction?

yes. I checked the deck direction. This is a large slab that covers 1/2 the building's floor plate. That's why I cut one section and moved it around (within the same slab's boundaries) and discovered the misbehavior.

Very strange. I can not duplicate the issue you are describing. Does it effect the printing at all? Maybe its just not regenerating the graphics on your screen???

yes. The issue does affect printing.

First make sure that you deck is definitely perpendicular or parallel to the grids

But following that I have often seen large areas of composite slab behave like this, especially with complex sketch lines.

If you break into a few smaller sketches it should work fine

Out of interest does this floor sketch fit on one sheet?

Interesting thought about the slab not completely fitting on one sheet... But, no luck. This (misbehaving) slab fits on one sheet; the one that is behaving correctly *does* cross two sheets.

I think you're correct that it may have something to do with the angle of the deck span and the complexity of the sketch. If it comes down to it, I may go ahead and break the slab into several pieces.

For S's and giggles, I cut a section at the other side of the slab. In section view, the deck profile showed up. I stretched the crop box (toward the side of the slab where I want my section.) As I move that edge of the crop box, the deck profile appears and disappears. I cannot determine where it's going to decide to re-appear. I played with both edges of the crop box and I'm still at a loss for my original section cut.

I just think it's kind of a pain to have to go to that section EVERY DAY and make sure my deck profile is going to show up before I print. Blah!

Have you filed a support request?

Is your metal deck direction correct?
is it assigned in both floors going to the same direction?

see posts #2 and #3 above.

This is a 6-month old post. At the time we were using RST2011. I did not contact Adesk on this issue. If you're also having an issue with this, look at Ben-May's post #6. I ended up breaking my "complex" slab (not fully rectangular, with jogs and angles all over the place) into smaller, more rectangular-like portions. This solved my issue.