Issue with Titanic Research Archive

yesterday i spent alot of cor mementos to unlock 1 tier and 2 tier talents, so totally i spent 5 points, were unlocked
Orb Operation Manual x1, Expansive Mind x3, Emergency Cranial Defibrillation x1. But today after i spent cor mementos to unlock 3 tier Clear Sight, Emergency Cranial Defibrillation point dissappear
now its grey and seems like not unlocked. How it can be? Now to unlock will cost 900 cor mementos, why i need to unlock already unlocked talent
pls help, or return bk my mementos, cause Emergency Cranial Defibrillation more critical then 3 tier from begining