Adrianvr As @SchnuppiLilac said, the studio has figured out how to work around (at least the automated version) of your system. For instance, 73332 is a scene that essentially existed already as 37775. I cannot really check what changes were made that resulted in the ~2 minute runtime difference, but it clearly isn't something relevant, since the "new" version only exists on aggregators like SLR and your competitors. The studio's own website only has the original 45:41 version. The same is true for the other RealHotVR Melanie Marie scene (37987 is old and deleted, 76177 is the new one), and probably for a lot of their other scenes.
Having provided the links, I really hope you don't remove the current versions. In the end, we as customers want to have the content on SLR, but currently the studios actions of removing old videos in order to reupload them slightly changed is terrible, especially if scripts hand-made scripts were created (as is the case for two of the ones slated for removal).