When I open a PDF with corrections listed in the comments I see only a few of them (e.g. "8 Comments" while there are actually 437 comments.) The rest of the comments are not loaded automatically and the same has appeared after page down the pages one by one. (e.g. If the PDF contains 1000 pages then we have to page down every page manually. So then the whole comments can be loaded fully)
This leads to critical complaints from my clients. I faced this comment loading problem in Acrobat Professional 8, 9, 10, Xi, and DC. Please give any solution to solve this issue.
Note: There is no filter applied in the comments and all the comments are in expanded mode.
Comment review and collaborate PDF
I can't find any documentation on it, but it looks like Adobe Acrobat is lazy loading the Comments, at a guess because there are so many, so it only loads the one for the page you are on, and then it loads the next page when you get there.
A possible workaround would be to navigate to the last page and then back to the first, this would force it to load everything.