I'm probably going to go out on a limb here and say it is an issue with PS2, mostly because the terrible programming at times.
So it was working fine prior, wanted to give Creator update a shot and see gaming mode in action. Now Planetside 2 crashes once pushing Play Game. I've even uninstalled and reinstalled, cleared all leftover files for the game. Deleted all of the various .ini files and validated game assets (from PS2 launcher). No lots of the usual browser listing an error code.
Just a heads up for any other PS2 gamers out there, or perhaps any Day Break games such as EverQuest incase the issue is with their launchers and Win 10 Creator update.