I build an altar and succsesfully craft Aer seal symbol. Then I try to craft Praecantatio seal symbol. They have same craft (all seals aer, Praecantatio and etc have same craft - 4 golds and 1 crystal) - but Aer seal symbols starts to craft immideatly and crafts very fast, but Praecantatio seal symbol dont craft... Altar start to work but nothing happens. I wait really long but nothing. Other seal symbols same - they didnt crafts... Altar starts to work but nothing happens.