meta description getting duplicated

You’ll want to look at what the pages are with duplicate meta descriptions and go from there.

I feel like the all-in-one-seo plugin is getting overrided by another code or maybe php?

For example I was working on https://www.protovest.com/airgate and changed the seo description to this: The Proto-Vest AirGate ? helps you save money by cutting horsepower usage up to 80% between vehicles!

I waited an hour and it would not update on google and bing.

I did the same for the https://protovest.com/bag-repair-loaner/ and removed the seo description. I did not replace anything on it. Google and bing still reads different content on the pages.

Is the plugin just simply not compatible? IS there something I need to adjust in the all-in-one settings?

https://semperplugins.com/documentation/why-doesnt-the-title-and-description-i-set-appear-in-search-results/