Issue #33802: NovaGal NG-20 Slim landers have nonfunctional effect mesh
In the 1.9.51 patch, the Nova Galactic NG-20 Slim lander only has one working effect nif on the port side of each lander. The starboard side has no coolant mist or thrust flame.
The culprit is a misnamed effect node in the nonfunctional effect nif. It seems that the animation controller for the lander effect mesh was altered in 1.9.51, and whatever loose tolerance in node name finding was tightened. As a result, the nif in question was made nonfunctional.
Simply renaming the node to match the counterpart in the functional effect nif (and in a third mis-fitted lander effect mesh used as a troubleshooting test article) using a Starfield-capable NIFSkope was enough to restore its appearance and function.
Attached file is the fixed nif, and should go in meshes/effects/shipsfx/modules.