Scenes Disappear when I modify my model

I am pretty careful, but obviously not perfect. But why now? is it a 2022 issue?

All I can see from the files you shared is incorrect tag usage and unused content.

There is a new problem that can have the effect of your scenes disappearing. I have something of a work around to the problem, but it would be best to go back to your original file, that shows the most problems. Then I can try my work around on that model. Do you still have a copy of the original model?

from up above

I looked at that file, and like Dave I didn’t see much wrong with it. Are there particular scenes that look incorrect?

Like I said originally:

Not sure if this is a bug in Sketchup or my model.

I have a fairly complicated model that I created in a previous version and now I have 2022. I need to make some changes and as soon as I make a change my scenes literally disappear.

While looking at my “site plan”, I turn off the visibility of a single group and the viewport (scene) is empty. I turn the visibility on again and the scene is still empty.

I notice that, when in the scene and viewing it, if I tilt the model (it is in parallel projection) and the scene also goes blank. But if change it to perspective view, it comes back.

Either I am missing something or there is a bug. Very frustrating as I need to modify this scene to produce a delta for an ongoing project, under construction.

I was able to hide a group in the Site Plan scene, and the remainder of the scene was still visible. But, when I did an Undo, the scene went blank.

I tried the work around I mentioned, and it does seem to fix the problem. I will send a message to you with instructions to try.

Hmmm…
Open your Sketchup model,
Go to the Outliner
Unlock the Component named: Location Snapshot#1
right click and erase that component

Earlier I did notice that very large objects can provoke the issue. Your script, which I sent to speotter, works around even those cases.

Took care of my problem, Thanks so much.

We experience this disappearing scene issue occasionally as well and it is quite bothersome. @colin what was your work around?

In the end I wrote a topic about the issue, and the work around. You can read quickly through the early part, and get to where I describe the work around:

Hi Colin,

I did end up finding that post and will give it a try on the next file it happens too. My colleague had already gone through and fixed everything by the time i came across it lol. Our problem doesn’t appear to be unique to section planes though. It also happens to site plans, elevation views etc where no section planes are active.

Phil, you should probably remove all your contact info from the post…Bots are looking for this sort of thing.

I deleted your contact info.

If you can make a small example file where things look blank and there is no section plane, can I look at the file?

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Thanks Colin, I just replied to the email and my auto signature went along with it.

Ok this particular file was having issues with the elevation scenes but is now just having issue with “Scene 17”. I can the ruby script in the file and it totally destroyed all of the scenes.

The attached file is pre ruby script. https://drive.google.com/file/d/105ME3GCypTRHV9efQV_rHgffrT5Zh_Vj/view?usp=sharing

For reference scene 17 should be showing the section cut but its camera has shifted to show a different elevation, fixing the camera angle works but then it goes back after saving.

An important part of the instructions is to turn off the Model Info/Animation/Enable scene transitions option first. Then the script shouldn’t destroy the scenes.

I’m not sure what scene 17 is supposed to look like. It seems to be showing something, and isn’t blank.

So this particular model had blank scenes including scene 17, they were all fixed but scene 17 will not behave properly now. No matter which scene you go from, scene 17 simply turns on the section cut but leaves it set to the view of which ever scene was before it. Try switching from say the main floor scene to scene 17 and then from an elevation then back to scene 17 and you should see what im talking about.

good call on the transitions, I will try turning those off first before running the script.

Look at:
The Scenes Panel
Scene 17
Properties to save
Camera Location checkbox