Yes. I have the same problem. The Epic Game Laucher works fine, and I can make my own unreal project, launch the unreal editor and such.
But there is no Modding tab. I only get the Unreal Engine, Fortnite, Unreal Tournament, Shadow Complex, Paragon tabs.
I wanted to make a mod for ARK. I already have experience in 3D modelling and coding for other engines, like Unity.
But apparently someone doesn’t want me to.