Objects not showing up in viewport model space

[ktb0026]

I have sheets set up for a set of plans, and for some reason in a lot of the viewports, nothing is showing up. Everything in paper space is showing up, but the entire model space is blank. I've messed with layers, done regen, recover, audit, etc. and nothing is working. I'm hoping it's a bug with an easy fix, but if not I'm going to have to set up all of my plan set all over again. Weirdly enough, it is only the main drawing area that is affected. For example, I have a plan and profile sheet where the profile viewport shows everything perfectly fine, but the plan viewport is empty. Please let me know if you can think of a solution. Thanks!

[Joe-Bouza]

VPLAYER >> thaw >> all

try that

[ktb0026]

Thanks, Joe. That didn't change anything. I think it's a bug/corrupted file, but I don't know how to fix it.

[rl_jackson]

Do these viewports have a dynamic north arrow attached to them?

[ktb0026]

Yes, they do.

[AllenJessup]

Click into the viewport and select the majority of the area with a crossing window. I've seen graphics card issues where things don't show. You could also try turning of Hardware Acceleration.

Unlock the viewport and do a Zoom All and/or a Zoom Object Last. It's possible the view got shifted. If that's not the case remember to undo back to the original view.

If there are objects in the viewport. An update of the graphics card driver may help.

[rl_jackson]

What your describing sounds similar to what I've had happen in the past with the Dynamic North Arrow bug. I recently started testing them again and had not come across it. If you could post the file/files here that are in the drawing so we could confirm this it may help but as far as a resolution I've had to go through and recreate VPs to get the information back. I'd open a support ticket with Autodesk and submit the data so they can see what up.... It could be something to do with the Display Manager getting whack up possible.

[AllenJessup]

Just a wacky idea. Try copying the viewport elsewhere in paperspace. See if anything shows up.

[ktb0026]

Thanks, it is probably something to do with that. I've already started recreating the VPs and it'll probably be much quicker for me to just redo it than to get support from Autodesk. It is what it is. 

[ktb0026]

I tried that and it didn't help, but I appreciate the idea. Thankfully, all my paper space objects are still visible, so I just have to recreate viewports and turn off layers.

[Joe-Bouza]

If you are running 2016 or older then @rl_jackson  is probably correct

[sbrown2QL3HH]

Was wondering if you had any other issues with the dynamic north arrow bug. We are thinking of reimplementing them/testing them and I was wondering if they have been working fine since then? Thank you!

[mabouzid7G4BL]

Are these Sheets/Viewports imported from another file? 

I had same issue as the layer was named _VPORT where I only renamed it by deleting the "_" then everything worked

[Udo_Huebner]

Maybe

Command: DISPLAYMANAGER has switched off some object in general.