Hello and good afternoon;
I am playing on the Steam version of the game, I just downloaded the latest update v1237. This morning (game day) I had a Bronze Lumina Wand with one enchantment installed and active. I just went down to Cho's underwater lab and I upgraded the Wand to the Silver level. When I got back the upgraded wand, the previous enchantment was removed, and both enchantment slots were empty. I expected the new second slot to be empty, but I thought I would still have kept the first enchantment. Is that not right? I am attaching a screen shot and my save folder so you can check the start of today and check what I mentioned. Thanks for your help. Regards, John