After a war, some screw corvettes were totally destroyed, so that now in a squadron of 4 ships for example, I have 2 ships instead of 4.
The squadron is in Hamburg, which has a level 14 naval base, it is in a passive posture and the base is correctly supplied, but the replacement of these missing 2 ships is not going to start.
Another squadron of merchant ships instead, was correctly filled with missing ships. What's the problem?