This happened to me as well, after updating lspdfr,
The issue was an out of date update.rpf due to the recent GTA V update,
The fix was to delete my modified Update.rpf (mod folder in OPEN IV) and start fresh
(Tip, back up anything like vehicles.meta or such so you can just paste them into the new .RPF)
Hope that helps,
-AM
Really great pack! Probably my favorite Tahoe's on the site! Wondering if you might ever expand this pack, perhaps some of St. Augustine's 2009 chargers or older Tahoe's?
Keep it up man!