I've got two Scrivener projects on my iPhone 6 that I created and write on my mac. One, a journal, syncs without problems.
The second, a UK stage play, synced okay until a couple of days but now it doesn't. I press the sync button but to no avail.
So, obviously, I've done something wrong and somehow changed something in this project's 'identity' and IOS doesn't recognise this project.
Here's my questions: Can I delete this project from Dropbox and if I do that will it delete it automatically on my iPhone?
If it is deleted, and I presume it is if it's no longer in Dropbox, then is it possible to upload the project that's on my mac and, if so, how do i do that or does it happen automatically?
Am I in the realms of the ridiculous? I'm really wandering in a maze now

Any help, suggestions and advice (not too techie, please) would be most welcome.
thanks,
martin.