Check Duplicate Bundle Dependencies finds duplicates with only one group in the project

unity_bill We are testing addressables for our project. We've started with very simple setup by moving a couple of our project's scenes to the single 'Default Local Group` group. As I understand 'Check Duplicate Bundle Dependencies' analyze rule is needed for finding common dependencies between two or more groups. I assume that for the single addressable group it should always find nothing. But in our case it marked to png sprites as duplicates. How this can be happening?