Missing Blocks with 0 corrupted files

Question

I have an HDFS running with multiple datanodes on cloudera.

Sometimes we get an error message in the overview which is:

There are 1 missing blocks. The following files may be corrupted:

But the list there is empty. No information about the problematic datanodes or the files.

I tried to run:

hdfs fsck /

But it returns nothing.

When I'm running the following command:

hdfs dfsadmin -report

I get:

Under replicated blocks: 1
Blocks with corrupt replicas: 1024
Missing blocks: 1
Missing blocks (with replication factor 1): 0

How can I fix this issue?