I had my character wiped around 5 times over week. It had never happened before and hasn't happened since, weird. If you keep an eye on the bottom left messages and you see the "testing 123" or new spawn message then if you're quick enough you can escape out, exit and avoid the wipe. Not sure what the cause is, I've read that it could be when joining newly restarted servers but I couldn't find a pattern.
I should be on later tonight, Steam name is magneze.