Annoying glitch...

[InfiniteStates]

I have the platinum, so I don't think the trophy is glitched, unless you are incredibly unlucky.

How I used to check was by going into an online game by myself and checking each plane and loadout against the list. I did it that way because quite often the string was too long for other windows (i.e. training set up). But in an MP lobby, you can see the whole string in the bottom left. For instance, on the IL2 there would be 3 or so loadouts ending ...x8 RS-...

TBH I didn't know it showed all loadouts in the hangar - I hate going there because of the load every plane change.