This experiment was performed on demo.moodle.org for repeatability

    * create a new course named "New"
    * New -> Administration -> Import
    * select course "Moodle Features demo" as course from which to import
    * select only SCORMs (no user data or files)

Note that "Moodle Features Demo" has three SCORMS:

    * SCORM/AICC eXe package
    * SCORM/AICC RELOAD demo package
    * SCORM/AICC SCORM 2004 example

The import proceeded normally until the step in which the exported activities are restored into the target course. The transcript follows:

------------------------------------------------------------------------------------
Import course data

    * Using existing course
          o From: Moodle Features Demo (Features)
          o To: Testing import (TI)
          o Adding data to existing
    * Checking sections
    * Copying course files.
      .
      .
    * Creating scales
    * Creating groups
    * Creating groupings
    * Creating events
    * Creating course modules
          o SCORM/AICC "eXe package"
          o SCORM/AICC "RELOAD demo package"
          o SCORM/AICC "SCORM 2004 example"
    * Creating gradebook
          o Preferences
          o . . . . . . . . Categories
            .
    * Checking instances
    * Refreshing events
    * Decoding internal links
          o From SCORMs/AICCs
          o From Questions
    * Creating roles definitions
    * Creating course level role assignments and overrides
    * Creating module level role assignments and overrides
    * Creating user level role assignments and overrides
    * Checking course
    * Cleaning temp data

An error has occurred and the restore could not be completed!
------------------------------------------------------------------------------------
On the course page of "New" I see six SCORM icons, three of them without names:
    * SCORM/AICC
    * SCORM/AICC
    * SCORM/AICC
    * SCORM/AICC eXe package
    * SCORM/AICC RELOAD demo package
    * SCORM/AICC SCORM 2004 example

If I turn editing on and click the edit icon for any of the first three, I get "The required instance of this module does not exist"

I checked moddata in course "New". It has three SCORMS numbered 4, 5, and 6. All the moddata appears to have been imported correctly.

I was able to play the three SCORMS in course New, so they seem to have imported correctly.