Docebo won't trigger completion of Rise SCORM file

I am having the very same issue and I am losing my mind. I have done so much troubleshooting and am convinced it is on Docebo's end, but they're saying everything is fine and everything is working great when they test. I have been very, very very assertive with them and provided them evidence that nothing appears out of order with course/course file itself but they keep blowing me off and saying everything is gravy with the LMS and actually straight-up gaslighting me.

I have done what Christopher suggested on multiple occasions with tickets I've submitted as well, and sadly, that did not help. They just shrugged it off and told me to manually mark the users as complete. I do not have time for this and wish for the issue to not occur at all. I cannot find a rhyme or reason for it and it happens in clusters. Things will be fine for 2-3 months, then all of the sudden anywhere between 3-5% of our users experience this error in various different courses for a few weeks, then all goes quiet again. Rinse and repeat. 

I deal with their support staff in Italy while I am based in Florida, so coupled with the communication lag-time is the issue of the language barrier which certainly doesn't help, so if anyone finds any way around this/a solution...oh boy that would make my year!