Some SCORM related issues might of the following issues related to SCORM courses can be caused by suspend data, such as the following:
Suspend data upper limit
It should be noted that the upper limit for suspend data is 64,000 characters. If this limit is exceeded, it can cause issues with SCORM courses, depending on the browser being used.
...
If you have developed the SCORM course internally then changes can be made in-house. We strongly advise that you break larger SCORM courses into smaller chunks or disable the resume functionality.
If the SCORM course comes from an external supplier, we recommend contacting them, as the SCORM course is not designed to work with SCORM 1.2 and the supplier must make the necessary changes for you.
SCORM session interruptions due to unstable connections
Sometimes an unstable internet connection can cause a SCORM session to become interrupted, which in turn can cause issues related to suspend data. To avoid this, you can create shorter SCORM courses, as well as request that users only take SCORM courses while using a stable internet connection. For example, it is not recommended that users take SCORM courses while on a device that is connected to mobile data.
SCORM assets are stored remotely on a server
Most SCORM courses reference and display various different assets, such as images or videos. If all or some of these assets are stored remotely on a server and the SCORM course needs to constantly reference them, it may cause issues with suspend data. Therefore, it is recommended that all the necessary assets required for SCORM courses, such as files, videos, and images, are included in the uploaded SCORM package if possible.
SCORM courses are left open for extended periods and the suspend data limit is reached
Sometimes, if a SCORM course remains open for extended periods of time, the suspend data limit will be reached. To help avoid this, it is recommended that users know how long the session should typically last, and that you instruct them to close and then reopen the SCORM course if they overrun and need to pause before resuming.
Users are ejected from a VPN session whilst taking a SCORM course
If users are connected to a VPN when taking a SCORM course, especially a SCORM course that is very large, it may cause issues related to suspend data, and the user may be ejected from the VPN session. If issues like this occur, it is recommended that you either extend the VPN session or create shorter SCORM files so that users are not ejected.