Last [s]two[/s]three times server crashed, I got my ore smelt to a lower quality metal than usually.
With q33 ore smelter and q32 coal, I get q21 metal as if ore smelter quality is reset to 10 (though it's hard to say if smelter or fuel is q10 at the time of metal quality calculation).
Looks like smelting results are calculated before ore smelter quality data is loaded after the crash.
Can this be looked at, please, to make quality data more persistent?