Then no textures should be missing, so why are textures missing after an installation?
Exactly, they shouldn't.
But, as explained so many times, internet caching and server replication might get in the way, which means if your local cloudflare node hasn't been replicated yet after an update, the new textures files might have not reached it yet.
But of course, they eventually will after some time, which we have no control over it, sometimes it's a few minutes, in some cases it might be some days, and that's why after we add new operators, for a few days we have a few users reporting "pink textures" or any similar issues, but nobody reports it anymore after a few days.
We have an OFFLINE installer available for those users affected by a still outdated cloudflare node in their area, but as explained in the Offline installer Sticky thread, it only contains GSX code, to prevent the more serious issues, it doesn't contain models/texture, because if it did, it would have grown by now to the same size of the full installer, defeating the purpose of having it as an update.