EDIT
solved.
Ok this is the problem.
If you put the seed books into the chest before of any action(as i was doing in the testing games), it bugs the system indefinitely, i think to the next log.
If you use correctly the seed by unique power, it works perfectly.
I think that a note on the end of the page of epic spells(when it will be re-done) will be great!
Like this
"Take care of use the seed NOT putting them into chest, but using their unique power!"
Thanks