New installation, unable to get Dropbox connected. I wiped settings to try again, and I get the same error. After wiping settings, I scroll down and select Dropbox as the remote storage. Hit Save Changes and then click the resulting link to authenticate.
(The link is: http://my.site.removed/wp/wp-admin/options-general.php?page=updraftplus&action=updraftmethod-dropbox-auth&updraftplus_dropboxauth=doit, which then calls https://www.dropbox.com/1/oauth/authorize?oauth_callback=http%3A%2F%2Fmy.site.removed%2Fwp%2Fwp-admin%2Foptions-general.php%3Fpage%3Dupdraftplus%26action%3Dupdraftmethod-dropbox-auth)
Clicking this link takes me to my Dropbox account and a red error appears at the top of the page stating "The request to link the app is invalid."
Reloading the UpdraftPlus settings page results in the message: "(You appear to be already authenticated)." But there is no app registered on Dropbox, and backups don't work.
After trying a manual backup, each page load tries to get the files backed up, to no avail:
0000.000 Opened log file at time: Wed, 06 Feb 2013 15:05:24 +0000 0000.002 UpdraftPlus: 1.4.2 WordPress: 3.5.1 PHP: 5.3.6 (FreeBSD hostingprod.com 7.4-YAHOO-20111007 FreeBSD 7.4-YAHOO-20111007 #0 y amd64) PHP Max Execution Time: 900 ZipArchive::addFile exists: Y 0000.004 Backup run: resumption=6, nonce=02ff4996491a, begun at=1360158757 0000.015 Scheduling a resumption (7) in case this run gets aborted 0000.019 Creation of backups of directories: already finished 0000.025 Database dump: Creation and encryption were completed already 0000.027 Saving backup history 0000.030 backup_2013-02-06-1352_sitename_02ff4996491a-plugins.zip: plugins: This file has not yet been successfully uploaded: will queue 0000.032 backup_2013-02-06-1352_sitename_02ff4996491a-themes.zip: themes: This file has not yet been successfully uploaded: will queue 0000.034 backup_2013-02-06-1352_sitename_02ff4996491a-uploads.zip: uploads: This file has not yet been successfully uploaded: will queue 0000.038 backup_2013-02-06-1352_sitename_02ff4996491a-others.zip: others: This file has not yet been successfully uploaded: will queue 0000.040 backup_2013-02-06-1352_sitename_02ff4996491a-db.gz.crypt: db: This file has already been successfully uploaded 0000.041 Requesting backup of the files that were not successfully uploaded 0000.045 Cloud backup selection: dropbox 0000.048 Beginning dispatch of backup to remote 0000.050 Dropbox: begin cloud upload