I have found a strange issue. Hopefully, it will also be reproducible on your end.
I created the page where I put the fluent form via the short code (example [fluentform id="82"]), then I translated the page and via the string translation I entered the english version of the fluent form - [fluentform id="83"].
Everything was working fine, until I have to update the translation - something went wrong with the layout so I have to manually request for the translation - via the Translations menu - when I finish the translation, I found out, that the original string [fluentform id="82"], which I translated via the string translation to [fluentform id="83"] was again returned back to [fluentform id="82"].
This is not very convenient, because I when I forgot it, incorrect version of the form is displayed.