When a flow is executed in the list view, it does not proceed from the processing screen.

 

Lightning Web Security may be disabled.

Lightning Web Security must be enabled when the flow is executed in the list view. From Setup > Session Settings, check enable/disable "Use Lightning Web Security for Lightning web components and Aura components".

 

About Enabling Lightning Web Security

• Before enabling Lightning Web Security in the production organization, it is necessary to confirm in the Sandbox that programs and managed packages in the organization are not affected.
• About enabling Lightning Web Security, ask your organization's system administrator or Salesforce help.

 

For organizations that cannot enable Lightning Web Security, an alternative is to run the flow with the data table on the application page.

Create documents of selected records in the data table of a Flow in Salesforce

 

Reference

How to deal with a CORS error when executing a flow in a list view and the process does not proceed

Enablement of Lightning Web Security Begins

Secure Your Components Better, Stronger, Faster with Lightning Web Security (Generally Available)

 

Instruction manual

Use with Screen Flow

Use with Screen Flow (for OFC Ver.1)