EAC bugs out causing 100% core usage
After having the game open for a few minutes, EAC bugs out and pins a system thread at 100% usage of an entire core. The thread is usually different each time. (100% / 16 cores = 6.25% = 1 core maxed)
The game cannot be relaunched because of the hung thread. The only "fix" is to restart the computer. This eventually stops after having an entire core pinned at 100% for over eight hours. It goes without saying how this negatively impacts the game's performance, makes it impossible to restart the game without restarting the PC, wastes energy, causes excessive fan noise, and being down an entire CPU core for hours on end.
This is **bleep**ing ridiculous and appears to be a recurring issue, with each known thread with this issue documented in this post: Apex Legends won't close on the EA app | EA Forums - 5607927