A Issue occurs during deployment package assignment for packages around 6 MB or larger.

While deployment package assignment when the package size is around 6 MB or larger.
This issue impacts all users and is not user-specific.

The behavior can vary across environments due to differences in available system resources, such as heap size limitations and background processes consuming resources at runtime.
As a result, the same deployment package may succeed in one environment but fail in another, even when the configuration appears identical.

Steps to Reproduce-

• Create a deployment package with a ZIP file size close to or greater than 6 MB.

• Assign the deployment package to users.

• Observe that:

  • Assignment fails or behaves inconsistently.

  • Issue occurs regardless of user selection.

• The same steps might work in sandbox orgs.