with the ‘@’ sign not all persons that are part of the channel are shown anymore
just enter the @ in different channels and with different browsers and logins.
that always all person of the channel are shown when just the @ is entered
depending on the channel and also on the web browser and login a different number of names are shown when just the @ sign is entered
this is what another user of our instance does see in the channel when entering the @, so no names of persons at all.
this is what I (as an admin) do see in this channel when entering the @, so a list with a scroll bar since the channel has 28 persons and I do see all 28 names.
But in other channels even myself as an admin do not see any names. And only three additional names which are not part of the channel are shown.
and this is what I do see with a test login and in another browser, so only 3 of the 28 persons of the channel.