Serious Bug- All V-Ray Settings Deleted From skp File.

[Jackson_cg]

This has happened to me just a couple of times in as many years, but I finally found what causes it and it is reproducable in any skp file.

The symptom is that all custom visopt info and vismats are suddenly lost during an SU/VfSU session meaning you have to set the whole thing up again from scratch or, if you realised it happened quickly enough, close that skp file WITHOUT SAVING and reopen the last saved version (yet another reason for regular saves).

The cause (or at least the only one I've identified) is if you select "New file" in SU (either by icon or from the "File" menu) a prompt will appear asking if you want to save changes before closing and opening a blank file. That in itself is completely harmless, but if you change your mind at this point and select "Cancel" SU flickers for a few seconds and all your V-Ray skp file info is lost. As I said, AFAIK the only fix for this is to immediately close that file and open the last saved version.

[40th]

Re: Serious Bug- All V-Ray Settings Deleted From skp File.

Thanks for the info.
Hope this won't happen to anyone. But still good to know those things in the right time

[Jackson_cg]

Re: Serious Bug- All V-Ray Settings Deleted From skp File.

Unfortunately it has inevitably affected others; I distinctly remember a post on one of the forums a few months ago where someone posted a distressed "What happened to all my VfSU settings?" topic.

Thank God it's fairly unlikely to occur under normal working circumstances as it's a real killer as bugs go.

[thomthom]

Re: Serious Bug- All V-Ray Settings Deleted From skp File.

...

*thinking back to earlier today - just before I left the office* I just hope I didn't just do that!

[dkendig]

Re: Serious Bug- All V-Ray Settings Deleted From skp File.

Interesting find, our support manager pointed this post out to me while I was walking to the fridge. Sketchup's observer system has always been a headache for us. That's what's supposed to tell us when an event happens in Sketchup... It works for the most part, you just need to give it some special attention sometimes. We had one heck of a time just figuring out when someone clicks the "save" button. We had hoped that ModelObserver.onSaveModel would let us know when a user saves... and it does... it just doesn't let us know until after the operation has been performed... which is pointless. If the file saves before we know about it, then we can't attach our data to the model prior to saving. So instead we had to find ways to be a little more tricky. Apparently we weren't tricky enough! Thank you for your efforts to pinpoint the cause, we'll do our best to avoid this type of issue in our new version.