what could be the reason why the release and picking can't select material

Summary: This is a Manufacturing process.

Now have to start with the manufacturing process test but have a concern with the pick in the material.

Release and picking action from the work execution app

The material is available to have qty for all components we use control by a lot this is a Manufacturing process.

Our problem is the request process does not select any material to move from the store to the manufacturing process.

Some weeks ago not have this problem the process worked fine the only thing different is to upload the total of real items and start with the test.