So I booted up the game and got my Silver Lining relic and went to go open it up. When I went to go open it, it just sat there and looped then I got the network error. Then I went to go open it once again and discovered that it had disappeared. I didn't even get the fighter from it. I just wanted to make this bug known so that you don't lose any relics. As far as I know, this only can happen if you happen to lose connection while opening a relic.