Please use the forum for support https://forum.joomla.org.

On an unrelated issue I can see that gallery you are using is inserting hidden spam links into your ssite which will drastically effect your appearance in search engines and I strongly recommend that you remove that

 
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| < div style="display:block; font-size:10px; overflow:hidden; height:1px; padding-top:1px;" >< br / >< a href="http://www.admiror-design-studio.com" target="_blank" >AdmirorGallery 5.1.1< /a >, author/s < a href="http://www.vasiljevski.com/" target="_blank" >Vasiljevski< /a > & < a href="http://www.admiror-design-studio.com" target="_blank" >Kekeljevic.< br /> Website security test completed by https://www.security-audit.com< /a >< /div>
  |  

Replying to this old ticket (sorry Brian), because I came across the same issue, and want to explain what's happening for anyone else who runs into it on J 3.x.

If you are using anything other than a core template, and you are not following the exact same display logic as Protostar:

• Go to the menu item (or global configuration) for the blog category.
• Make sure the number of columns is set to 1; or, if you use the columns parameter in your template, set the order to 'across'.
• Otherwise, Joomla rearranges the item list per every nth item before displaying it, resulting in what appears to be a random order.

I believe columns for the blog category have been removed altogether for Joomla 4 for exactly this reason. It definitely appears to be a bug, but it is not.