Gradle bootRun failure

I have a multi-module application that contains three projects, a spring boot microservice, a data module, containing common utility classes and entity objects that are persisted to both a traditional sql database and a mongo database, and lastly, and a ui project. The data-module project is just a jar, not a “FAT” jar - the project structure looks like this:

– microservice-1 (subproject1)
– build.gradle
– settings.gradle
– data-module (subproject2)
– build.gradle
– settings.gradle
– the-frontend (subproject3)
– build.gradle
– settings.gradle

After doing a gradle build, I noticed that the built file name of the date-module is: data-module-0.0.1-SNAPSHOT-plain.jar. I was expecting data-module-0.0.1-SNAPSHOT.jar. When I do a gradle bootRun I get the following error:
Project with path ‘:data-module’ could not be found in root project ‘greggo-app1.
Doing a jar -tvf on the file greggo-app1-0.0.1-SNAPSHOT.jar,
which is the “fat” jar, I see the data-module jar (plain.jar) included. In the build.gradle script for the file, I referenced the data module like:
implementation project(’:data-module’).
Everything built without errors, but obviously something isn’t quite right. Any ideas where I went wrong and how I can fix this?