At https://community.openstreetmap.org/g the list of groups only shows the first 36 groups in some situations. I’m seeing it with:
The missing groups appear when I drag the right-hand edge of the browser out to 1500 or so and back again.
I can’t reproduce on https://meta.discourse.org/g, perhaps because there are only 17 groups.
How peculiar, can repro at first glance. Moving this to bug and I have a vague recollection I’ve seen something similar very recently.
I can repro this in safe mode too, so probably not specific to your forum
I can’t reproduce this issue in the latest version of Discourse.
Meta has more groups that are visible only to team members, and I can’t reproduce the issue here.
I’ll keep an eye out for it, but it appears this issue was already handled.
The OSM forum is running our stable branch, so it’s a little behind on some fixes.
It should be gone once we cut a new stable version and they perform the update. 