[Shane Zimmerman]

I had the same issue after installing DR 15 on a brand new comp. I also couldn’t find the “expand” button Duke Sweden was referring to, so I stumbled upon this method.
Open DR and go to the color window (menu options are different for each window.) Click on “Workspace” at the top menu, then click on OpenFX. This had the same effect of expanding the OFX window. It should load all of the OFX properly.
After doing this, I haven’t had any more problems with this. Cheers!