So a couple of hours ago i was finishing a project that i've been working on for a week, i was going to render it, then i realized that two "track" (not sure if this is the right word) of my timeline disapeared : https://puu.sh/qLPRX/10d231b91f.png
as you can see on the picture there a 5 blank track but it used to have a lot of video, pictures and text
the content totally disapeared, i don't when and why it happened
another strange thing is that i still have the pictures, videos and generated media on the "project media" tab : https://puu.sh/qLQtg/d30d029add.png
btw, sorry if there is spelling mistake, i'm french
Seems you accidentally deleted those events somehow. Probably you deleted something unnecessary, but that was grouped with other events, which were grouped, linked, etc....
Do you have a previous version of your project?
If not, I can think of very few things you can try.
If you still can, try to quit without saving (or saving to another file), hopefully your events will be then there.
If this fails, I think you have a veg.bak beside your project. Try to rename it to another.veg and open it in Vegas.
Hopefully you'll have your missing events in it...
That's all I can think of. Maybe the more experienced experts will have some better ideas...