In a current PBEM I captured a Level 1 Fort. My troops are in good order and I am outside the fort. There are no units in the fort. There are no enemy units in the region. I am in supply.
However, I cannot raze the fort. This is the second fort on which this has occurred. The first fort WOULD let me raze it the turn after I took it.
So, the sequence is:
Turn 1: fight and take the fort
Turn 2: unable to raze
Turn 3: able to raze
Does this look right to you, and if not, what am I doing wrong?