This is going to be hard to debug...
running amule from cli gets the above output, and amule won't run, but trying to debug and running in gdb, no issue, app just runs:
and at the (gdb) prompt type
run, app works
Issue is fixed, a rebuild against new crypto++ 8.3.0 was needed.
Rebuild amule will move shortly, if you need it right away, get it from the build repo now:
sudo pacman -U http://kaosx.tk/repo/build/amule-2:22.214.171.124-4-x86_64.pkg.tar.zst