Hello Odoo Community,

I'm facing a persistent access error while trying to use Odoo Studio on version 18.

Despite being logged in as an Administrator and already having the "Technical Features" group (ID 7), I still get the following error when trying to customize views:

Access Error  

You are not allowed to access the model 'Models' (ir.model).  

Currently, no group defines this access.

Here is what I’ve already done:

• Confirmed that the user has the base.group_no_one group assigned
• Added a manual access right to ir.model (read/write/create) with no group (global)
• Cleared cache and reloaded Studio
• Tried on different models (Contacts, Products, etc.)

Still, Studio throws this error in the frontend console:

UncaughtPromiseError > OwlError

Cannot read properties of undefined (reading 'id')

at _getStudioViewArch

It seems Studio fails to fetch the model architecture even with proper access rights.

Has anyone encountered this issue in Odoo 18 or has a workaround?

Any help would be appreciated!

Thanks,