No, I have not lost data by running from the backup subdirectory. However, depending on how your setup is configured, if you accidently boot the machine and forget that the auto-start instance of the Dude hasnt been disabled, you could run into problems starting the backup instance.
I stripped all duplicate objects (on different maps), and pared it down to minimum, checking every credential possible, and it still is misbehaving. Will try it on a totally remote and clean server and see if it chokes. I also will have to try Dude on RouterOS. I have it on a 1U server, and maybe that isnt broken...
OTW, I am forced to recreate. I smell a null string in the data store. Not likely to correct that problem. Restore methodology must be improved to incorporate importing single maps, or other groupings of devices. That way I could have a clean copy of all the objects, that I know are stable, and only restore known good template objects. This can be accomplished by a shaky manipulation of XML data, hopefully avoiding the corrupt data...
Thats what I think. I think Normis should tell us when the 'Selective Import' feature will be implemented...Thats what I think...