Re-use package not being updated
We've encountered an issue where certain H5P activities are giving an incomplete .h5p file when clicking the 're-use' button. For example, we have a Course Presentation with 8 slides and if we edit the H5P activity in Moodle, we see 8 slides. However, when we click 're-use' to download the h5p package and upload this to a brand new h5p activity, only 5 slides are showing. I've tried going into the activity, making a small modification, then saving the changes (in case it's a caching issue) but this doesn't work.
So far the only way to get around this seems to be to back up the entire Moodle activity and restore it again. This ensures all 8 slides are present and when clicking 're-use' on this activity we can restore it again with all 8 slides. The issue is, the affected site could have many of these present and Teachers reusing the package may not be aware of the issue (and don't have permissions to run a backup/restore).
Is there any way to fix this or a possible cause?