Autocomplete suggestions no longer work

After upgrading to IntelliJ IDEA Community 2018.3.5 (by performing uninstall + fresh install) and reinstalling IC2, autocomplete no longer offers most likely autocomplete suggestions first. It has always done so for me, and to my recollection I never had to setup anything in particular for it to work. Offline Symbol Table is up to date.

Reproduction--it's everywhere. Anywhere I am in the context of an SObject and want to autocomplete its fields.