S3 storage, encryption issue

Hi everybody,

I am having trouble using s3 as external storage, with encryption enabled.

If I set up Amazon S3 external storage and provide all infos requested, with encryption disabled, everything works fine.
If I enable encryption, it only works with ‘Activate sharing’ option enabled.

But after a short period of time (a few minutes) I cannot open/rename/delete anymore the files I uploaded.
I can nevertheless upload other files, but with no possibility to open them any longer.

I tried everything I could so far. Any advice?