Please provide the website URL for further analysis.

Ok. The site won't let me post by meta tags.

The site screwed by post when using code tags, so here it is again; As stated in my original post; I've already determined that Google is not getting the URLs from the...

As stated in my original post; I've already determined that Google is not getting the URLs from the website. I see no task for a developer here. Below is an example o...

The developer of the website can analyze, from where or how such URLs are getting generated. Use of hreflang attribute will help in this regard.

What do you mean by "fix the URL issues after an analysis"? What analisys? The URLs don't exist on the site. Where did Google get these URLs from? In the ex...

Google's algorithmic updates during these periods are the reason of ranking fluctuations. Check your competitor's pages closely and figure out what has started working an...

Ask your developer to fix the URL issues after an analysis. Meanwhile, you can remove the known crawled URLs manually using Removal section of the GSC. Only the pages...

Keep working as usual, apply on-page & off-page SEO etc.

OK, thank you for looking into that. Do you think we just need to wait until all the pages get indexed?