Changing post entirely, thought it was a problem with reset without default configuration. It's not - problem occurs with default configuration. The problem is 100% CPU use running the /export command and timeout errors:
Probably a good idea... it's just my lab test device. Real shame this low end devices didn't have a little bit more storage.It might be wiser to stay on 7.12.x for that device until they fix that space issue for 16Mb devices.
Otherwise you'd be constantly looking at the edge.