So i decided to start doing all the various challenges listed in the pip boy such as get X number of crits with X weapon type and I've come across whats seems like a bug. MANY challegnes endlessly repeat while other that have the exact same condition dont, such as the get 100 crits with pistols challenge ends after getting it once while the get like 64 crits with energy weapons one loops forever. Is this a bug or did the devs just randomly pick some challenges to repeat forever while other similar ones dont?