Updated few days back and got this warning two days back and today. Yesterdays run gave no warning. Any ideas what this means?
Warning-Duplicati.Library.Main.Operation.TestHandler-FaultyIndexFiles]: Found 1 faulty index files, repairing now
We recently discovered that the compact feature in older Duplicati versions would sometimes write index files that were not complete. This is a subtle issue that has gone unnoticed for a long time, because it only manifests itself in very slow database recreates (no data loss, but waiting for hours or days can be problematic).
We baked the repair process into the test process, so whenever Duplicati tests some random files, it detects if they are affected by the issue, and if so, fixes it by uploading a correct index files.
The net result should be that your backups are fixed over time, and if you need to recreate a database it should as fast as possible.
Thx a lot for the fast clarification 
