Content and Keywords ranking (or not) randomly across GEOs

Hey all,

I wanted to share an issue I've been facing lately and to ask if someone has face a similar situation and knows what might be causing it.

So I have a casino affiliate site and have created dedicated landing pages for casinos. One of the articles I have is about the bonus of one casino with the keyword "Casino XXX Bonus Code".

I write in English and the og:locale of the site is en_GB although I have visitors from all over the world.

This issue is affecting many pages, but I'll use one of the latest as an example, as it's also one of the strangest.

tile of the article is "Casino XX Bonus Code 2024" and I used to rank in pretty much all GEOs if you looked for keywords like:

1. "Casino XX Bonus Code"
2. "Casino XX Promo Code"
3. "Casino XX Bonus Code 2024"
4. "Casino XX Promo Code 2024" etc.

However, since a few days from now, in many GEOs, I don't rank for keywords 1 and 2 (which are the main ones). I do for 3 and 4 (if I include 2024 at the end) but if I don't include it I can't find it anywhere on google.

If I look for some GEOs like US or UK I rank for all keywords, but for example Malta (where I live), I don't see it anymore and the same happens with many other countries where I used rank for those keywords.

As mentioned, this happens with many pages. Rank in some GEOs and don't rank in others. Or rank in all and out of a sudden, stop ranking in some GEOs.

Did anyone ever see something similar and know what can be done to solve it and rank everywhere?

Thank you for the help!