Not sure how I’m supposed to make an official report of this but the dropbox version included in Tumbleweed is way out of date and no longer function.
The problem is that in https://linux.dropbox.com/packages/ Dropbox is using a weird versioning system , standard version numbers for normal releases but a YYYY.MM.DD format for Betas. This means that despite the last beta having been released in 2015 , whatever is building the package think it’s version 2015 and is using it instead of nautilus-dropbox-2.10.0.tar.bz2 which is actually far more recent.
I’m not sure where to report this too to get it fixed in the repository (I solved this for myself by compiling the proper version locally and having it wrong at startup)