If the files copied by Singularity end up in the very same locations, there's probably something up with the files themselves. You'll want to make a copy of a file that you know works fine (from v2.2.4) into a safe place, then install v2.2.5. If the problem persists, you'll want to compare the two files to see if there is a difference. I'm wondering if something just got borked up in your installation, as if this was a widespread problem, this forum (as well as HCS's forum) would be lit up and quite busy. Have you checked over on HCS's forum to see if there's a known issue?