[Resolved] A huge problem with the translating repeater field in classic editor

Background of the issue:
I am a long-time user of the paid version of WPML and ACF. I am trying to present monthly and annual reports for a client using a repeater field in the classic editor. The reports include a title, date, and PDF file. I have one repeater for annual and one for monthly reports. The issue can be seen on this page: hidden link. I complete the reports in Macedonian, the default language, and then upload the PDF translation files in English and Albanian using media translation. I add translations by clicking the field for that language, ensuring the checkbox 'Keep repeater and flexible sub-fields in the same order as the default language' is checked. I added 2 monthly reports for May and June 2024 in Macedonian.

Symptoms:
The already translated fields are deselected, and the wrong translations are shifted without order. The page shows only 14% translated instead of 100%. The correct portion of the 14% translated content is shown here: hidden link. The rest of the translations are messed up, as illustrated here: hidden link. The latest reports for May and June have translations for March and April, and the rest of the page has shifted translations. Adding or deleting a row causes the translations to get messed up and shifted. I cannot add rows for each language manually because Macedonian is the default language, as shown here: hidden link.

Everytime I am adding some report I am wasting more then hour to manually change the positions of the translations again on English and Albanian to have a correct translated page at the end. Once the client send me a report for uploading this is becoming nightmare for me. I have reported this issue earlier but didn't had an answer as far I remember. This is not happening only on this site but others too, where I have for example repeater field for adding members of the team. Once I delete or add a row everything gets messed up and shifted. I am developer myself so you probably realize that all rows in ACF must have some kind of ID so why this shifting is happening, why the already translated fields have been deselected when they are already translated?

I wanted to try to add a rows for each language manually on their page in English and Albanian, but probably because Macedonian is set to be default language is not allowing me to add fields for date and select the PDF file : hidden link

This is an old issue, probably others have reported it so you might have some solution for this. I would be very happy if you could help me.

Questions:
Why are the already translated fields deselected and the translations shifted?
Why does the page show only 14% translated instead of just the ones I recently added which are not translated?
Why do the latest reports have translations for previous months when I haven't added any translation yet?
Why can't I add rows for each language manually when Macedonian is the default language?