And you logged in twice in the app? Maybe there are some special settings in your account?
Yes, I logged in twice, tested 3 accounts, and also created a new one
Have you tried clearing the app data?
Yes, I cleared it and created a new account. It didn't work.
New account? You mean Google account? And you added devices to that account?
Sorry for the delay, yes, Google account. Yes, I added a device.
At which point do you get the error? Maybe you can provide a screen recording?
Can you add preview version to traccar on hub.docker.com?
Docker deployment is industry and self-hosted standard, and IMO not letting docker users use/test such an important new feature is a big loss to everyone.
If you want you can always build a version using dockerfile.
yes, it works!