Failed to process file duplicati-xxx.dindex.zip.aes

I’m unable to solve this problem.

* 2020-06-12 23:29:46 +02 - [Error-Duplicati.Library.Main.Operation.TestHandler-FailedToProcessFile]: Failed to process file duplicati-i5eac3bd586494159ad1a6307761bfd0f.dindex.zip.aes
* 2020-06-12 23:30:27 +02 - [Error-Duplicati.Library.Main.Operation.TestHandler-FailedToProcessFile]: Failed to process file duplicati-i5eaf2dfe7d844c99a348960d5538d7b0.dindex.zip.aes
* 2020-06-12 23:31:08 +02 - [Error-Duplicati.Library.Main.Operation.TestHandler-FailedToProcessFile]: Failed to process file duplicati-i62f4a3491dfd4b91a7160172e61694b9.dindex.zip.aes

I’ve tried repair, delete+repair, purge, purge broken files, verify: none works.
No throttle option, no need for it: the destination is a usb disk attached to the router.
Any hint?
Thanks.

The hint is what you got in the one-line summary, which omitted the detailed error.
Some problem is showing up with those files, maybe while verifying backend files.

Can you try for a more detailed report from About --> Show log --> Live --> Retry?

The TEST command has more. Did you set up –backup-test-samples or similar?
I’m not sure if the three rather-close-together errors were from one backup or not.

I suppose you could also see if the file still makes sense or if it’s been malformed.

AES Crypt should decrypt it. If you prefer CLI, use Duplicati’s SharpAESCrypt.exe.