Bought a Voyage QT and can't equip it (Avenger Titan)???

Guys, I promise I've done this before but I'm also positive I'm missing something obvious, please help me before I spontaneously combust. I'm at Baijini Point with my Avenger. It's in storage (I made sure by storing it, retrieving, and storing again). I bought a Voyage QT at Platinum Bay and it's in the local station inventory. I opened up my Mobiglas, went to Vehicles tab and selected my Titan. Opened Propulsion tab, and I only see the Targus Explorer QT already equipped, no Voyage. Quick search says the Voyage is compatible, what am I not seeing? Thanks for preserving my sanity!