Are you trying to use XIM APEX on console or PC?Refer to https://xim.tech/start for console setup instructions.PC is not a supported XIM gaming platform. It may or may not work, depending on a game’s support for the genuine Xbox or PlayStation controller connected to XIM APEX, as well as in-game settings.
Do you have the DualShock 4 controller set to Use USB Cable in PS4 settings?