I cleared out all older versions of Scroll from my Knossos library, and checked all MVP folders for any stray Hecate model or table file that might be responsible, and found none. The odd thing, is that it only complains in the lab, and not in the techroom.
I decided to run a debug build to see if it generated any clearer error message, but have so far found a few more, though most are minor. Some of the civilian objects, like the Comet, are complaining of Model-to-table LOD mismatch, and the Mirage complains that there are 3 secondary banks in the table, and only 2 on the model. The Subspace Sath complains of a duplicate docking bay "Front Docking Bay".
I tried extracting the Hecate model from the Scroll VPs into data/models subfolders in Scroll, but got the same result. Where else might something be interfering?