It will only release it after you "get" the one your trying to change it to. If you don't find anything after trying to "update FP" and clicking "change experience". You can click the "close" green button at the bottom of the page, and you won't loose your FPs! The only way you'll loose all your FPs for 1 selected day, before looking at what's available, is if you do the "copy" method (website on laptop or computer) it will be the "add friends and family to existing FP" this will cancel your FPs! Ppl have lost theirs this way! I don't recommend this if your new to the FP+ system! I use the
MDE app on my iPhone or iPad it's easier to search for FPs because, you can search for 1 person in your party instead of your whole party. Especially looking for A&E, it's very hard to find 2+ FPs all for the same time! If you do find more than 2, it's your lucky day with extra pixie dust lol!! If you have any more questions PM me!! I'll be glad to help you