It si not just about one mission, it's about dynamic campaigns on the allies side.
When I play a simple mission or when i use QMB, axis AAAs fire properly but not when I play Dgen campaigns on allies side. I have compared several times axis and allies campaigns by playing them and every time, when I fly on allies side (e.g US or URSS campaigns ) axis AAAs don't shoot.

If you want to see what I said above, I advice you to create a dynamic bomber campaign in which you can straff an airfield. A20C/G or IL-2 are ground attack planes so I think it's better to chose them. If you don't have a mission which asks you to attack an airfield, you can create another dynamic campaign until you it gives you this mission. If you have EnjoyR's dgen pack you can try 5th AF bomber campaign with A20C(in this one A20s always straff some airfields) or Disaster on the Frontiers sturmovik campaign. Then try some axis ground attack campaigns. If you notice the same issue you can report it, if not it means that something's wrong with my installation.

Sorry about being so repetitive when I say Dgen campaigns but this is the only thing in IL-2 where axis AAAs don't fire since 4.12 update on my PC.

I'm going to try some missions in dgen to see, and maybe confirm, what I have seen in game.

Sorry for my grammar, I'm not native english.

With
cycles=0
timer=5
it circles for ages

cycles =0
timer=0
it flies to next WP

Taxiing
 

not really a bug but here it is:

I was trying out taxiing in the FMB and I noticed that you must have multiple flights of one otherwise they crash into the sides of the hanger upon taxiing is it possible to have taxi points for INDIVIDUAL planes in a flight or maybe make a plane taxi to waypoint 2 or 3 or 4 etc instead of 1 thx

I'm back and I have found that AAAs behavior is now completely unstable in my game. I have tried to attack a japanese airfield on QMB on solomon map and nothing happened. Then I tried to attack an american one on the same map and again nothing. And then I repeat what I have done on other maps and everything works fine and when I go back on solomon map, AAA miraculously start to shoot at me. I have tied some missions on dgen campaigns too and axis AAA shot me in one US mission or an IJA one but when I restart them AAAs don't shoot anymore on both sides;

I don't know what's wrong with my game. Do you think I must reinstall my game? Please help me.

baball, regarding your last post, did you possibly have defence set to "none" initially, then pressed reset when you started to test other maps upon which defence goes back to active AAA and then retried the Solomons map? I play lots from the QMB and AAA has always done what it should there.

I always make sure AAA is on in QMB but what you said is intereting and I'll check it out this afternoon. You may be right. I really don't know what I must do about this problem about Dgen's AAA in my game. My brother is playing right now a Dgen campaign and AAA is shooting at him but when I try another campaign nothing happens. I'm starting to think my game acts like a princess, sometimes it wants to work fine, sometimes it doesn't.

Do you think I should reinstall it?

I have tried it also with no luck. When it did happen, someone else was hosting.
Thanks for looking into it!

I'm back...again.

I have tried a dgen campaign on an MTO map and the AAA shoot but when I try a PTO campaign or an east front campaign, AAAs don't shoot me.

About QMB : I have tried to attack the same airfield on solomon map with AAA "on" and nothing hapenned. Then I have tried the same mission on smolensk map and AAAs shot me. Finally when I go back to solomon map, AAAs shoot me. There is no way I can explain it.

I don't have any problems with Yak-1 shadows.

I cannot reproduce it. Whenever I attack an airfield from QMB on Solomons (Oct.1943), AAA is firing at me. :(