Apex legends keeps minimizing.

I also have this problem. It started happening today for the first time. Since I last played, 3 noteworthy things have changed.

1. Apex Legends had an update.
2. I updated NVIDIA drivers.
3. I started using an ICC profile.

GPU: 980Ti

CPU: i7-2600

Monitor/Native Resolution: 2560 x 1440

I want to play at 1080p so I can get better FPS or use higher quality graphics settings. I want to also play fullscreen (1080p scaled up) as I don't like the look of unscaled windowed 1080p on my monitor. This used to work. Maybe I'm imagining it but I'm sure there was a "Full-screen Borderless" in NVIDIA GeForce Experience before today.

My problem in detail:

• 1440p works fine both fullscreen and windowed.
• 1080p windowed works fine.
• If I launch the game in 1080p fullscreen, the game minimises and instantly re-minimises if I try to switch back to it. Music can be briefly heard when luanching or switching.
• If I launch using settings which work fine but then go to the settings and change to fullscreen 1080p, the minimisation problem occurs.