That’s too bad, but it makes sense given these were so recently created.
The link that I posted in the last paragraph above has a little explanation into how conflicted files can occur, and a few quick guidelines you can follow to dramatically reduce the odds of this happening. I definitely recommend going over that since it looks like some of the crucial files in this project got conflicted. The .scrivx file in the main folder of the package is what holds everything together. At the least that may just mean a label you applied on one machine gets reverted, but at worst it could mean that files you’ve created are not visible on the other computer, because the .scrivx file is out of date, or get imported as “Recovered Files” in the Binder.
However, since you mention this recent problem occurred after the conflicts, resolving those probably won’t help. That’s something you should look into when you have time, as you likely have things you’ve written or changed in them that you want to keep but are currently not being used by Scrivener.
To resolve RTF files, the easiest thing to do is drag the conflicted copies out of the project, open the project, and drop them into the Binder. There you can figure out what they are and compare them with the copies you have available. Split views are good for that.
Resolving the technical files is more difficult unless you have a technical aptitude and don’t mind reading XML files to see what changed. In most cases I recommend just setting these aside. If you can remember the types of things you did on that day, you may determine they have nothing important. For example if you did not add or move items around, and just stuck to editing text, it’s likely that conflicted .scrivx file has nothing important in it.
Firstly, the instructions I sent earlier assumed Project Notes were the missing component. This is a different thing from Document Notes. Project notes are universal to the project, and they have a blue background by default in the Inspector. Document notes can only be viewed when you’re looking at the document they have been attached to, and have a yellow background by default.
So if it is document notes you are missing, those will be in the “Files/Docs” folder. They are the ones with “XX_notes.rtf” style names. Sorry for the confusion, I just wanted to make sure we are on the same page.
Back to your question: project notes are kind of strange in that they don’t have any sort of export access. Copy and paste is what you’ll want to do if you wish to back them up. Document notes on the other hand can be backed up, along with their respective documents, using the
File/Export/Files... menu command. There are options here for backing up just about everything that makes a binder item a binder item.