I've looked at this answer and others on this site and using Google, but I have yet to find an answer that works for this problem. This is the remaining non-incremental annotation processor that is listed by the newest version of KAPT:
Incremental annotation processing requested, but support is disabled because the following processors are not incremental: android.databinding.annotationprocessor.ProcessDataBinding (NON_INCREMENTAL)
Please note that I have migrated to AndroidX and am using AGP 3.4.1 (cannot upgrade to AGP 3.5.x) and Gradle 5.5. Any help would be much appreciated.