Hi Demetrio,
Could you please read note 156563-Settlement after activity allocation-revaluation.
I had a similar situation way before and I followed this note's instructions. According to this; you should run transactions according to this order.
a) Settlement (CO88 or KO88 or KO8G)
b) Actual price calculation (KSS2 and KSII)
c) Revaluation (CON2 or KON2)
d) Settlement (CO88 or KO88 or KO8G)
Could you do it again in this way and give us feedback.
Best Regards,
Sadullah