Funny, the migration itself worked.
I didn’t try to do the migration after this health check result in the first place, but obviously it was successful:
12:52:17 [main] INFO c.s.n.d.m.l.ProvidingJobInfoListener - Migration job finished at Wed Aug 21 12:52:17 CEST 2024
12:52:17 [main] INFO c.s.n.d.m.l.ProvidingJobInfoListener - Migration job took 4 minutes to execute
12:52:17 [main] INFO c.s.n.d.m.l.ProvidingJobInfoListener - 982088 records were processed
12:52:17 [main] INFO c.s.n.d.m.l.ProvidingJobInfoListener - 5 records were filtered
12:52:17 [main] INFO c.s.n.d.m.l.ProvidingJobInfoListener - 47 records were skipped
12:52:17 [main] INFO c.s.n.d.m.l.ProvidingJobInfoListener - 982036 records were migrated
12:52:17 [main] INFO c.s.n.d.m.l.ProvidingJobInfoListener - Created 'Rebuild repository browse' and 'Rebuild repository search' tasks. They will automatically one-time run after starting your Nexus Repository instance.