Expected Behaviour

When bulk moving issues within the same project, the "Affects Version" (required) field will let you set a value to it, allowing the operation to effectively complete.

Actual Behaviour

When bulk moving issues within the same project, the "Affects Version" (required) field will be checked in as Retained and the user will not be able to set anything for the field - not allowing the Bulk to complete.

When moving the issue directly (not using the bulk) the page let's you set the required field.