Hello,
Thank you for contacting us and sorry for any inconvenience that might have been caused due to that.
Please note that it is common for Google to do this nowadays. Even when everything is fine, Google may choose to display a different meta title and description for a search result.
Google sometimes adjusts the title and description according to the search intent. Google may choose to display a different meta title for search query results. Google may sometimes ignore the custom metadata you have set and instead display something from the page’s content that better matches the search intent.
You can follow this URL for details on this issue: https://rankmath.com/kb/different-meta-title-and-description/
Here’s an article you can also check for reference:
https://www.searchenginejournal.com/google-changes-more-than-61-percent-of-title-tags/435618/
In this case, you should clear your website cache and request the indexing of your pages by passing it through the URL Inspection Tool and request it there: https://developers.google.com/search/docs/crawling-indexing/ask-google-to-recrawl.
We hope that helps and we are here should you have any follow-up questions.
Thank you.