Possibly, but probably not, related to the issues with coordinates, that seem to be resolved just now with eddb4c3. I have one thconfig file, (in amongst a large project with many thconfigs that work just fine), with a mysterious scale related error. I suspect this must be of my own making, and not a Therion bug. C:\Program Files (x86)\Therion\therion.exe: error -- scrap RiwakaResurgenceRoughPlan-s1@RiwakaResurgence.RiwakaArea.RiwakaSystem defined at ./RiwakaArea/./RiwakaResurgenceCave/RiwakaResurgenceRoughPlan.th2 [9] is too large to process in metapost in this scale -- maximal scale for this scrap is 1 : 210 The scale I am using is 1:5000, which I assume is considered smaller than the 1:210 that is being complained about by Therion. This is a thconfig for a large project that I only tend to run once every year or so, therefore I'm not sure when the problem manifested. I have not figured out why the all component caves compile OK, but the whole system fails. Unless anyone has any brilliant insights I'm not really seeking a solution from the forum just yet. I have yet to find time to explore all the possible mistakes I may have made. I have tried removing the offending scrap from it's parent map, but then another scrap in a completely different cave triggers the same error. All the same, any insight gratefully received. Bruce