Face ID issue for a locked app on iPhone 12 Pro Max

One day i was just going to my locked app until it just didnt need my face id to open the app and then when i long clicked it my “require a face id” wasnt there also my “require a face id & hide this app” disappeared too and the app that was hidden wasnt in my phone anymore when i checked the app store it said “open” but when i search it on my library there was nothing when i came here looking for how to fix this glitch i saw one but when i tried it still nothing, if u dont know what im talking about its the new feature at ios 18 the “require a face id” on a app, im looking forward to an answer so pls if u have anything to say about this pls share it with me, by the way my iphone is iphone 12 pro max,

thank you for your time to read this any apple employee/worker or any apple pro users or iphone users, thank you (pls tell me how to fix this)

[Re-Titled by Moderator]

Original Title : Why did my app require a face id disappeared