I only have one calendar account by default inside the app. Whenever you turn that off, the CPU usage will go up very high and the app can't be used anymore. The taskbar icon flashes really fast as if it tries to open and close itself.
The only way to fix it, is to go to the Windows System settings > Apps > Installed Apps > Click on the 3 dots at Calendar Flyout > Advanced options > Reset
I only have one calendar account by default inside the app. Whenever you turn that off, the CPU usage will go up very high and the app can't be used anymore. The taskbar icon flashes really fast as if it tries to open and close itself.
The only way to fix it, is to go to the Windows System settings > Apps > Installed Apps > Click on the 3 dots at Calendar Flyout > Advanced options > Reset