About an hour or two ago, I bought the Verdant Patron’s Elegance from Osidion using an Earth-Encrusted Gem. As soon as I right clicked the ensemble to actually learn it, the connection issues started and I got disconnected. I logged back in and immediately began to disconnect again but was able to open my collection tab to see that the set wasn’t learned and the item was no longer in my inventory. After disconnecting again, I had to AFK for a while and just came back to see the set is still missing.