Cannot decrypt on ubuntu

I am working with a project on a new ubuntu installation. On osx I can use ansible-vault correctly, but on ubuntu I always get

(ansible-2.8) ansible❯ ansible-vault -v --vault-password-file=~/.ansible/vault-password view inventory/aws/ops/group_vars/all/vault_ops.yml Using /home/bkaplan/si/ops/ansible/ansible.cfg as config file ERROR! Decryption failed (no vault secrets were found that could decrypt) on inventory/aws/ops/group_vars/all/vault_ops.yml for inventory/aws/ops/group_vars/all/vault_ops.yml

The password file is identical to osx, same for the config.cfg (it’s from git).

The password has umask of 0600

~/.ansible❯ ll total 12K drwx------ 2 bkaplan bkaplan 4.0K Jul 8 16:22 cp drwx------ 2 bkaplan bkaplan 4.0K Aug 1 15:35 tmp -rw------- 1 bkaplan bkaplan 25 Jun 17 14:05 vault-password

Same version of ansible on both systems, 2.8.2

Both the password file and the file being decrypted are ascii

`
~/.ansible❯ file vault-password
vault-password: ASCII text

(ansible-2.8) ansible❯ file inventory/aws/ops/group_vars/all/vault_ops.yml
inventory/aws/ops/group_vars/all/vault_ops.yml: ASCII text
`

I have searched and searched, this is not an uncommon error. But I have not found any clues as the problem I am having.

Any help would be appreciated.

Running file command doesn't prove anything.
But if you do a md5sum of the file both places would ensure that they are equal.

I was running file just to show the they were ascii.

But thanks, because I thought the files where the same. Indeed I was sure. But of course they are not.