H5P file size issue

I recently made a course presentation H5P and uploaded onto Moodle. It was working fine but then I think I may have uploaded too many videos onto it (around 7 videos each 15-20 mins in length) and eventually it wouldn't open anymore and I lost all of my work. 

I'm assuming this was due to me reaching some kind of file upload limit on the H5P by adding too many videos. So my question is, what is the file upload limit on a H5P (e.g. in the form of videos being uploaded onto it) and at what point will it stop working?

It seems to be a flaw in the H5P design that it doesn't inform you that you are at risk of going over the upload limit and instead just stops working instead.