Looks like Ubiquiti rolled things back, the current stable version on the website is once again "7.4.162", and this package's 7.4.174 is missing from the downloads.
==> Making package: unifi 7.5.174-2 (Thu 21 Sep 2023 12:47:45 PM CST)
==> Retrieving sources...
-> Downloading UniFi-7.5.174.zip...
% Total % Received % Xferd Average Speed Time Time Time Current
Dload Upload Total Spent Left Speed
0 10996 0 0 0 0 0 0 --:--:-- --:--:-- --:--:-- 0
curl: (22) The requested URL returned error: 404
==> ERROR: Failure while downloading https://dl.ubnt.com/unifi/7.5.174/UniFi.unix.zip
Aborting...
error: failed to download sources for 'unifi-7.5.174-2':
error: packages failed to build: unifi-7.5.174-2
Pinned Comments
freswa commented on 2019-10-30 11:50 (UTC)
We are on Stable with this Package. Please flag out-of-date only if the Version provided with this package does not match the version under "Stable" in this link: https://help.ubnt.com/hc/en-us/articles/360008240754#1