Can't find zigbee2mqtt on add-on store

Hello, I folowed the instruction on GitHub - zigbee2mqtt/hassio-zigbee2mqtt: Zigbee2mqtt Home Assistant add-on and add the repository GitHub - zigbee2mqtt/hassio-zigbee2mqtt: Zigbee2mqtt Home Assistant add-on as told.
But the add-on doesn’t show on the page to install.
Any advice?
Thank you in advance.

Found the problem. Didn’t select Enable experimental features.
Fixed.
Thanks all for the help.

Had the same problem. Tried a bunch of things, but a restart is what made it finally appear.

I’m having the same issue, made sure advanced mode is on, and experimental features etc., added the repository to the add-on repositories, restarted HA, still not showing up in the add-ons list or search!

Well, after doing absolutely nothing, I came back an hour later and now I can find and install zigbee2mqtt add-on!

Didn’t select Enable experimental features.
How did you do that? I mean, where is this settings?

Had the same issue a few minutes ago.

Added the repository, could see that entry in the repository list, but couldn’t choose the addon from the addon list.
A page refresh using strg-F5 solved the problem - addon was available to install.