Annoying error message scares every new user

[notramo]

Describe the bug
When registering (tested on grin.hu HS, but probably it happens on others too), Element shows an error message dialog between the reCAPTCHA, and the e-mail confirmation step (while waiting for e-mail).

Error:
M_UNAUTHORIZED

It is shown for every new user, so it's very annoying. It makes guiding a non-techie user through registration even harder. I am saying it after guiding 5 non-techie through the registration.
It can't be dismissed. After clicking OK, it appears again after few seconds (no matter how many times you dismiss it).
The most annoying thing is that the error message is nonsense. Nothing is wrong, and the registration succeeds after confirming the e-mail in every case. There is no reason to show it.

It doesn't happen on Element Web.

To Reproduce

1. Start registration on grin.hu HS (probably others too), and fill the forms
2. Complete the "I'm not a robot" challenge
3. Wait for the registration e-mail to arrive (error is shown here)
4. Confirm the link in the mail.
5. Registration finished successfully, and logged in to new account.

Expected behavior
Not seeing an error message
Especially when nothing causes it, and registration succeeds.

Smartphone:

• Device: Happens with every manufacturer.
• OS: Various versions.

Additional context

• App version and store: 1.0.9 Play (in every case)
• Homeserver: grin.hu

[bmarty]

Ah, this is a regression, let me have on look on that.

[notramo]

Good job! This was fast! I'm waiting for the release to be able to recommend Element to more new users.