Hi Manu,
When uploading a SCORM package over a previous one, if the item identifier in the manifest file is different to the one being overwritten then the tracking data for that SCORM package in Moodle is deleted.
Ensure the item identifier is the same for the new SCORM resource
See https://docs.moodle.org/34/en/SCORM_FAQ#SCORM_results_deleted_after_package_update and https://moodle.org/mod/forum/discuss.php?d=276324#p1187694
When uploading a SCORM package over a previous one, if the item identifier in the manifest file is different to the one being overwritten then the tracking data for that SCORM package in Moodle is deleted.
Ensure the item identifier is the same for the new SCORM resource
See https://docs.moodle.org/34/en/SCORM_FAQ#SCORM_results_deleted_after_package_update and https://moodle.org/mod/forum/discuss.php?d=276324#p1187694