Published pages crash LMS lesson on iPad only

A couple of pages keep crashing my captivate lesson on the iPad. It works fine on the desktop and Android 5. I tried re-publishing the file both in Captivate 8 and Captivate 9. The iPad is a Mini, and it did it with iOS 8 and 9.

It's a responsive captivate lesson with 76 slides, published to HTML5, that's on SCORM cloud LMS. When I go the first page in particular, it gives me this error message: "Error - unable to acquire LMS API, content may not play properly, and results may not be recorded. Please contact technical support." and restarts the lesson.

The three pages in particular are fairly complex. The first page alone there are 6 shown groups, 4 additional hidden groups, 3 transparent buttons,18 text captions, 36 image buttons, a handful of smart shapes/lines, with the image buttons showing/hiding with several advanced interactions. The next page has the same amount of items as the prior. The third page is simple.

If I delete ALL the other slides in the lesson, and just publish the three pages, it works fine across all three devices! If I delete the first half the slides in the lesson, it also works fine. Is there a limit of some sort in the project I'm running up against?

I can't isolate these pages, simplify anything, or break anything up on the page(s), It must be part of the lesson as users go through it. It's an electronic version of a printed document an unthinkable amount of users already have and will use again. It must work across all three devices (iPad/Android/Desktop), be responsive, and use HTML5. I know, tall tall order, but everything else works fine in the lesson, and it's what the people want/paid for. I can't chalk this one up to "it's HTML5 it's not perfect" because there's obviously something going on here, I just don't know what it is, or what the solution is.

Thanks in advance!