can't load (or launch) aircraft when I should be able to

I'm currently in the IJN CV Ryujo (level 55). It has a Number of Aircraft Take Off capability of 7. This means 7 can load, and launch at the same time.

Currently I have a mix of aircraft (13 fighers/11 torp/9 dive bomb), but lets focus on my fighters... I have 13 fighter aircraft and 3 Fighter Pilots (FPs)... Here is a somewhat reproducible error:

1. start match
2. on FP 1, load 6 fighter aircraft... this takes quite some time
3. While FP 1 is loading... on FP 2, load 1 fighter... this launches quickly
4. FP 2 goes out and does some scouting...
5. once I find incoming bombers I launch my FP 1 (6x fighters) to intercept
6. As soon as FP 1 launches, I load the remaining 6x fighters on to FP 3
7. since FP2 has been flying around a lot already, he runs out of fuel and returns to ship.
8. as soon as he lands I SHOULD be able to load him (while the 6x are loading on FP 3)... but I can't...

Step 8 is where the problem is at. Basically it appears that the ship doesn't "know" that a 7th fighter aircraft (and FP 2) has landed... so even though there are 7 fighter aricraft on board (6 are loading on FP 3, 1x fighter is standing by and FP 2 is open/ready to load). I can't..

9. I have to wait until the FP 3 (6x fighters) takes off until I can load FP 2 with 1x fighter... 

Can anyone else reproduce this? This also occurs on my ISE CV but with 4x FPs.

It occurs sometimes, but not always. For example a couple games ago:
1. I did steps 1- 5...
6. but my FP 2 (1x fighter) got shot down...
7. I loaded 5x on FP 3, and 1x on FP 2... I wanted to see what would happen, so..
8. I launched FP 2, I made him land... 
9. FP 3 (5x fighters) were still loading... but now I had a 6th aircraft... 
10. I tested it, and I was able to load/take off FP 2 with 1 x fighter

grrrrr

Thank you