Re: Mass Effect 2 Legendary DLC not loading

I haven't reached ME2 yet, but they have said as much in here:

• Integrated weapons and armor DLC packs
  • Weapons and armor DLC packs are now integrated naturally into the game; they’re obtainable via research or by purchasing them from merchants as you progress through the game, rather than being immediately unlocked from the start. This ensures overall balance and progression across ME2 and ME3
  • Recon Hood (ME2) and Cerberus Ajax Armor (ME3) are available at the start of each game

https://www.ea.com/games/mass-effect/mass-effect-legendary-edition/news/gameplay-calibrations