Stability of Storyline 2 SCORM on Android via Totara LMS

Hi,

I've been hearing from external eLearning vendors that Storyline SCORM modules on Android are "unstable" and if we wanted to engage them to create an eLearning module using Storyline for us, that they would not recommend this approach but would do so should we sign a waiver excusing them from any responsibility should the module not work.  When quizzed about what they mean by unstable, they haven't been unable to provide any specifics. 

I've been using Storyline 2 for a while and I've not had an issue during testing and viewing modules on my Android via our Totara LMS, until yesterday.  Yesterday a staff member notified me of an warning screen that appeared (see attached) when she was part the way through a module.  After a quick chat with my colleague it became evident that she was not in a great mobile service area.  I too replicated this in an area where the reception isn't fantastic, but I can usually make phone calls with no issue.

Has anyone experienced this before?  Can anyone confirm whether this type of error would be due to a bad mobile area?  Does anyone know or have any specifics about the view external companies seems to have about Storyline being unstable on phones?

Thanks, Michelle