Not possible to use 'save as copy' button

When doing an upgrade to the latest version, it is not possible to 'save as copy' of an item or to change settings of columns in flexicontent. During the progression bar , you are redirected to the homepage of the admin and the item is locked.
url of the site: 11ridev.arc3c.be and I will PM the user that has full access.

In order to reproduce the problem. Go to the backend, go to flexicontent items; take an item and 'save as copy'. The progress bar will show up but then you redirected to the homepage of joomla admin and the item is locked, without the new item saved as a copy.

We don't know what is happening wrong, please any help on how to debug would be appreciated.

Thanks

did youc check js error in firefox or chrome ?

I don't find any js error in the development console

Hello

Maybe an error is occuring during the save operation

you may send me a PM with super-admin access

I have send you a PM with the admin access

Hello

i tested in your website and 'Save as copy' seems to work properly

maybe you can suggest a specific item ID to try

I have seen you have tested the item hurtecant.
1. With which browser did you do the test? on all my browsers it isn't working.
2. I have seen that the original item is locked when you do that and in my case, it doesn't create an item and i'm redirect to the homepage of admin. did you have also this behaviour?

Thanks for your help but this is in our dev environment and we don't know how to solve this. When using a beta version you have provided us, this is working fine. So it's a bit strange.

Hello

i tested with v3.2.1.7 and
hurtecant

and it is working
browsers firefox and chrome

Thanks for the help.
What we have noticed is that indeed with user flexi it works, with the standard admin it doens't work..
We did a cleanup of the sessions table but it doesn't do the trick

Do you have an idea where to search?

We have found the issue. It is linked to the languade setting of the admin user of the backend.
When changing the default language to English UK for our user, it is working.
Do you know the issue?

Thanks