[HELP] RankMath: Title and description issue

I've come across the following problem: even though I've set the title and description in RankMath, for some reason Google still shows the title of the article itself, not what I've entered. What is the problem? It's been a long time since Google updated the information

It can take some time for Google to re-crawl and re-index your site. You mentioned that it's been a while, but sometimes you can force a quicker re-crawl by requesting it through Google Search Console.

You can also go on your WordPress website, install LiteSpeed Cache plugin and use this option Purge All just like I made a screenshot.

#1 Google didn't recrawl your page(s) yet, in case you've made changes to the page(s)
#2 Google decided to use your H1 as the title instead,
they don't strictly follow the title tag, sometimes they simply remove or/and change some parts

Thank you guys. I've taken your advice, request crawl and purged all, hope it works out over time!