SOFS deduplication issues for RDS.

I have a two node SOFS cluster that has direct attached storage this host HA storage for an RDS setup. This has been in production for at least two years. I noticed a weird trend on disk space of the last few days and checked into it and noticed that the Dedup Jobs are failing.

If i run the job i get spammed with warning messages (790 events on my last run)

Data Deduplication was unable to access a file or volume. Details:

CDedupFileFactory::Create(\\?\Volume{72912f5d-c574-4860-b956-74ac0ddcd0cb}\System Volume Information\Dedup\ChunkStore\{39A9D76E-376C-4AAD-9B28-1BB62BFBA566}.ddp\DedupFileList.1.new, ...)
 The volume may be inaccessible for I/O operations or marked read-only. In case of a cluster volume, this may be a transient failure during failover.


Operation:
   Updating a chunk store file list.
   Recovering a chunk store file list from redundancy.
   Checking chunk store consistency.
   Initializing chunk store.
   Running the deduplication job.

Context:
   Chunk store: \\?\Volume{72912f5d-c574-4860-b956-74ac0ddcd0cb}\System Volume Information\Dedup\ChunkStore\{39A9D76E-376C-4AAD-9B28-1BB62BFBA566}.ddp
   Volume name: \\?\Volume{72912f5d-c574-4860-b956-74ac0ddcd0cb}\
   Volume name: C:\ClusterStorage\Volume1 (\\?\Volume{72912f5d-c574-4860-b956-74ac0ddcd0cb}\)

Error-specific details:
   Error: CDedupFileFactory::Create(\\?\Volume{72912f5d-c574-4860-b956-74ac0ddcd0cb}\System Volume Information\Dedup\ChunkStore\{39A9D76E-376C-4AAD-9B28-1BB62BFBA566}.ddp\DedupFileList.1.new, ...), 0x80070005, Access is denied.

Then after a few minutes i receive and information event.

Optimization job has completed.

Volume: C:\ClusterStorage\Volume1 (\\?\Volume{72912f5d-c574-4860-b956-74ac0ddcd0cb}\)
Error code: 0x80565313
Error message: Data deduplication failed to access the volume. It may be offline.

Savings rate: 73
Saved space: 5826018537547
Volume used space: 2125270257664
Volume free space: 1093804580864
Optimized file count: 104
In-policy file count: 105
Job processed space (bytes): 0
Job elapsed time (seconds): 389
Job throughput (MB/second): 0

Besides this everything appears to be working just fine.

I am looking for ideas here.

Thanks