issues with IH-2 and Product Pages

V.1.3.8
Image handler / and admin addons currently on store
Gone Snow Blind from looking for answers Forums & FAQ from all sites.
Issue at hand is concerning Image Handler II and Product Pages with multiple images. I have finally opened the store for business and have been adding products to the catalog. Most have additional images needed and for the most part IH2 appears to be functioning normally or as expected. However...Product pages for some show the additional images, some do not. All same catagory, and as far as I know same image format(s).
Can someone take a look or offer suggestions as to why this might be happening?!?!?

Copy and past below...link won't show on thread page.
https://www.wreckersource.com/re_try_site_1/
(link to "Sniper" Page)
http://www.wreckerequip.com/re_try_site_1/index.php?main_page=product_info&cPath=1_2_3&products_id=34&zenid=f3a4b2d383680d16541519c24f214230

(Link to "Stalker" Page
http://www.wreckerequip.com/re_try_site_1/index.php?main_page=product_info&cPath=1_2_3&products_id=74&zenid=f3a4b2d383680d16541519c24f214230

Examples: Once onsite, go to manufacturers, click "United Recovery Industries"...

Takes you to Product Offerings...Click "Sniper" Product image shows but no additional images at bottom. NOW...
view "Stalker". Additional images are right there at the bottom as it is supposed to be.

What am I doing wrong?

Thank You for Your Time and Consideration.