My Free Little Legend Egg is Gone

When the first TFT beta pass came out, I earned enough beta pass points to open my free little legend egg, but I hadnt decided what i wanted yet so i did not click, open or accept it. When the beta pass was updated, the option to get my free little legend egg was gone and the progress bar it was on had been replaced by different loot. I would expect all un-clicked rewards to be transferred to the loot tab but it just disappeared. OR to be able to click the arrow to the left of the progress bar but the arrow is un-clickable and gray. Now I am froever stuck with the default sprite instead of a free, cute, sentinel runespirit and it makes me extremely dissapointed. If this is an intended feature then i am INCREDIBLY dissapointed. If anybody else has experienced this, please comment so. Thanks.