Did you check with the service team of your LMS software about the possible reason for the same? Which is the LMS you are using? I presume you would be able to solve it by making some adjustments in the settings of your LMS. I, for instance, have been using Skyprep( ) to perform all the activities and it supports most of the games that I've tried uploading into it. You should contact the service team immediately as I believe they would be of help in this case. Thanks.