Tek Dedicated Storage Tekgram is just... gone from engram list

So I've been playing a singleplayer ASE world, mainly Ragnarok. I have Small Bosses, Structures Plus, Simple Spawners, Awesome Spyglass, and Dino Storage v2.

The tek dedicated storage tekgram is just gone. I do not have the server set to allow only specified engrams, so it's not that. My previous character had all bosses from Island to Ab, so I definitely had it unlocked. I could make an S+ tek dedi, but it doesn't work with my Stryders. I picked up a normal tek dedi that I had placed previously, intending to use it temporarily, only to find I couldn't place it. It would show up green, but wouldn't actually place. Thinking my character might be glitched, I remade my character, but noticed that in the locked tekgrams... the tek dedi was STILL missing.

This wouldn't be such a headache if the S+ tek dedi worked with stryders, but it doesn't. DILO am I doing wrong??

For debugging purposes, I tried loading a brand new save of the Island with the same mod loadout, and made a new character. The tek dedicated storage engram was gone then, too. Then, I tried opening a brand new Island save without any of the mods, and made a new character. Tekgram still missing, and upon killing the alpha dragon, I saw text saying that I had learned the tek dedicated storage engram... but it still wasn't in my engram list! Considering this happened when I didn't have mods loaded, I'm convinced it's not my mods. This happened after I had verified all my game files not that long ago as well

Please. Any help is appreciated. This has been plaguing me for like a week and I can't find answers or even people complaining of a similar problem anywhere...