Unexplained drop in fighting level

Yesterday i had an interceptor wing with a fighting level of 348. The planes were all 350 quality and the missiles 347.

Today the fighting level is 295. The planes have dropped to 302 and the missiles to 288.

The unit has not been in action and has not been re-supplied. Even if it had i don't possess any interceptors below 350 or any missiles below 347.

WTF????

Same with me when I first looked the fighting level of my 2 offensive army units were around 170, then a couple of hours later they were set back to 120. WHY?

It probably is down to re-supply. Although you may have high Q in stock, it gets diluted when loaded into a supply unit and then cut in half when it is delivered. So when you are topping up units the qualities will get be lower. I'm not sure why this would happen to the aircraft though, unless you have used the unit and lost a few planes and the above logic would apply.

The best thing to do with offensive units is have max quality stocks and dismantle off units then re-make them. They will be max quality then.

I do that with my offensive units Crafty every time i use them, obviously not possible with defense units though unless you're at war.

If i dismantle now it dilutes my current stock. Which means i now have to keep selling to and buying from my own enterprises to keep the quality right.

I have that crap constantly with my drones/missiles, i don't need it with defense as well.

Apart from the hassle i get constant messages saying i'm over my limit and can't spend again until next month.