I rerolled into skin permanents I can't use... twice in a row.

Like, I get if I get a shard or something I can't use, I have the option to disenchant/roll them. I just rolled 6 shards into two skin permanents for champs I don't own, and don't plan to purchase. Why can't I just roll it again? If it's for a champ I own, it doesn't go in my loot it just gets added to my collection so it's not like I can get an infinite loop on that. They don't even disenchant for the cost to upgrade a shard, so they're going to sit there forever because I spun 6 frikkin shards on em and I'll be damned if I just roll them like a single shard. Anyone at Riot able to help me with this? It's not like champ rerolls give me a champ I already own. [zombie-brand-facepalm] [zombie-nunu-bummed]