have to wrap delta with np.array to make sure it is ndarray and result stays CoordinateFrame

src/mdevaluate/pbc.py

@@ -163,7 +163,7 @@ def nojump(frame: CoordinateFrame, usecache: bool = True) -> CoordinateFrame:
                 ).T
     
     delta = delta[selection, :]
-    delta = delta @ frame.box
+    delta = np.array(delta @ frame.box)
     return frame - delta