OLM.UNKNOWN_PICKLE_VERSION when trying to enable key backup

[Mikaela]

Describe the bug

When I login and enter my E2EE key I get error message Could not enable key backup: OLM.UNKNOWN_PICKLE_VERSION. My other clients report Hydrogen as unverified and Nheko also sees a dehydrated device that is also unverified.

I have dehydrated devices enabled in Element labs.

To Reproduce Steps to reproduce the behavior:

1. Add hydrogen.element.io as a shortcut or whatever PWA term is
2. Login
3. Enter the E2EE security key
4. See error Could not enable key backup: OLM.UNKNOWN_PICKLE_VERSION.

Expected behavior

My Hydrogen and dehydrated device get verified.

Screenshots

Smartphone (please complete the following information):

• Device: iPhone SE2020
• OS: iOS 15.5
• Browser: stock browser, safari
• Version: 15.5?

Additional context

I am also unable to verify from other devices as Hydrogen seems to not support either emoji verification or QR code scanning?

[bwindels]

Enabling key backup won't verify your device just yet, as verification isn't supported yet. See the FAQ how to cross-sign your Hydrogen device from element web. Not being able to enable key backup seems like a valid bug though. Could you make sure you are running the latest hydrogen and then submit your logs from the settings? That should hopefully give me some more info.

[Mikaela]

Another error message: Could not enable key backup: Could not read key backup with the given key. The key is copy-pasted from my Bitwarden and works with Elements and Nheko.

I just "installed" Hydrogen today and am at version 0.2.32 (4197437774) and "Logs sent successfully!"

[Mikaela]

Were the logs received or did they include anything? I previously reproduced this today.

Is there anything further that I can do?