When I launched any e-mail app, it would flash and close up. I also had issues opening my Amazon, Sephora, and Rogers apps.
Normally, I can uninstall and reinstall a problematic app and I'm good. It didn't work for any of them. You also can't uninstall the Gmail app on a Google Pixel phone.
I ended up erasing everything on my phone and installing my data from a backup that had occurred three hours earlier.
Other than signing into every app that I use, my phone works well again. Man, I'm tired!