Account not connecting to Linux client, web says it is connected

📱 Desktop & mobile clients
1

I am a longtime NextCloud user on multiple devices. But today, on my POP_OS desktop, running “3.3.2 POP_OS”, just updated, I can’t log in. The client opens a browser window, and the browser connects fine. But the client doesn’t register that it is connected. I also removed ~/.cache/Nextcloud/ and tried again, but no difference.

What could be the problem? Thank you in advance.

Screenshot from 2021-08-30 09-50-15

2

Update: I am now having this same problem across multiple machines, including the v3 client on Ubuntu-based POP_OS and the v2 client on Debian-based MX Linux.

On a POP machine, I just switched NextCloud to the flatpak (KDE edition), and it works.