Yes, unfortunately I was able to reproduce this issue. Fortunately the exchanges usually dont use this command by default, so I think we can patch this without wreaking too much havoc.
C-Cex shows difficulty on top-right of the trading BBP/BTC pair page, but I don't know if it comes out from that command or from getinfo.
Meanwhile I will compile 1.1.8.5b for MacOS and also prepare ubuntu PPAs
BTW I upgraded my sancs to 1.1.8.5 from PPAs without issues, I didn't even need to delete blocks/chainstate data except in one of them (I could have shut it down unproperly).
sudo add-apt-repository ppa:biblepay-official/mainnet
sudo apt-get update
Packages for Biblepay mainnet (stable).
Distros: 16.04 (xenial) and 18.04 (bionic)
Architectures: i386, amd64, armhf, arm64
sudo apt-get install biblepayd # daemon and cli
sudo apt-get install biblepay-qt # for QT GUI
For c-cex we got the code in before he upgraded so we are OK there.
Great on the re-compile. I'm working on windows now.