I thought Amagi's sub-gun-1 (Num 2) has been set to max 65-degree AA at least two weeks ago. However, the max angle is still 35 degree now, it's rediculars as an AA sub-gun. (Nagato 1944 AA sub-gun's angle has been fixed as 65 degree.) 

I hope this bug could be fixed after the maintance in this week. Thx.