After update: backup folder changed, warning even with exclude

After upgrading to the latest version I have two problems:

The backup folder for an existing job changed, also resulting in former backups not being displayed under “Backups”. By changing it back in the job this problem seems to be resolved.

After I did this I ran the backup to see if everything works, but I get a warning a folder can’t be read. I didn’t change the permissions of this folder, it is excluded and I never had this warning before. Any ideas why this is happening?

http://wordpress.org/plugins/backwpup/