For the last couple dozen updates in AIM, I go through the same ritual:
- Download SETUPVAR.exe
- Copy AIM folder and name with that build
- Reboot
- Run SETUPVAR.exe
- Copy font-awesome-4.7.0 from copied folder
Since I started that ritual, I haven't had a problem...until now.
Note that I skipped build 2377 and went straight to build 2378.