Mjollren (atys)
I had the exact same problem! Still, reinstalling from backup is kinda harsh, would be nice to find out what's triggering it. Are we subjected to some sort of A/B testing? :D
I recommend to save the whole ryzom folder to a USB stick or similar from time to time. That way, you always have a fallback. Even if forgotten for a few weeks or so, it will still work. And you can carry it to another box with the same OS easily (works under Windows and Linux, no idea about Mac).
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