Do you use any cache plugin?
We got the following answer from WPML support
Could you please ask your client to make sure that he’s using the updated versions of WPML plugins. Also, he might need to change his Language URL format to Different languages in directories in WPML -> Languages.
If you have some steps to reproduce the issue, please tell.
Just for your info, the client has opened a ticket in our system and one of our supporters is following with him.
Could you, please, continue your conversation with WPML support team to solve the issue?
