Good news! Found the culprit in the map.xml there is a densityHeight code that probably makes possible to get the iron ore (something regarding a free zone), this one needs to be moved to my densityHeight,xml and removed from the map.xml
Before thinking of removing that I tried a couple of hours to re-convert the gdms, change the channels for multifruit... Maaaan, a lot of work and it was that simple...
Will update both map ASAP. Thank you very much for noticing and reporting.