Unsealed Spellbook Bug

Hello. Playing games as swain. Taking unsealed spellbook, and I cannot swap summoner shards while alive. I use attack move on left click if that means anything. If I'm dead, I can swap shards, but while alive the click just goes through the teleport or ignite icon and does nothing.

Lost 2 games now cuz of it, and I can't run unsealed spellbook anymore cuz i'm worried it will happen every time

Help me. plz