Just downloaded this version:
IntelliJ IDEA (Minerva) IU-144.3143.6
Build #IU-144.3143, built on January 19, 2016
JRE: 1.8.0_60-release-b15 amd64
JVM: OpenJDK 64-Bit Server VM by JetBrains s.r.o
Auto generation of has completely stopped working for me. It makes the offer with the pop-up of the right import but alt-enter then does nothing.