I had the exact same behaviour, I figured out the "conflicting" app was my PIA VPN running in the background. Its split tunnelled which means only certain programs are routed through it and none of them are Apex or anything relating to gaming. For you its probably not that but maybe something similar. Something is accessing something that Javelin doesn't like. Might be even as stupid as a network driver, overlay, or who the f knows what. And no, by no means is it okay for Javelin to suddenly flag totally unrelated programs or software on someone's PC if there is no gameplay enhancements associated with it.
Ye im aware of drivers and software being flagged by anticheat but even with clean boot and clean drivers setup i cant access the game. I guess to play this masturepiece of a game i need to buy a new pc or totally reboot my windows and pc setting but im not doing that
