Captivate 9 responsive project crashing on mobile

I have been searching for a few days now with no luck regarding why my Captivate 9 responsive project crashes on mobile.

I have found many posts in regards to file size/image size. I also have seen many posts stating make your images exact dimensions or SVGs. Here is the problem, the course is responsive and contains photos. I can't make exact dimensions if the dimensions are going to be changing across break points. I currently have either the height or width at 100% of the stage (the images are sized to match the largest of these dimensions). I originally imported jpegs at a pretty low file size. Thing is, Captivate seems to be outputing them as pngs in the package. I tried pngs as well but the file size on those images is quite large, trying to accommodate each mobile break point.

If I remove a module or two, the package functions fine on our local server on mobile, which is why I'm suspecting an overall size issue. This course is not a long course and I'm struggling to figure out why the entire project continuously crashes on mobile.

Note* It works fine on desktop PC and Mac.

Thanks in advance for any help...

**Update, the crashing seems to only be an iOS issue.