Stuck in a listing blank ‘language’ setting bug support loop

I am trying to make my first two listings for books I made and had printed myself. These are physical books and I plan to use FBA. I have ISBNs for them.

The actual issue so far as I can see is when I click on the listings to try to complete them, there is a red exclamation symbol next to ‘vital info’ and the language form field, while previously set to English is now reset to blank and framed in red as incomplete, but when I try and set it to English again and submit, it just goes back to blank again.

When I am trying to save and submit my listings, they are going into the ‘fix your products’ page with the issue description: ‘There is no record of the SKU corresponding to this update on your account. This commonly occurs when there are other issues on your SKU.’ I am not a company I am an individual so I assigned my own made-up SKUs, an example of one is this: PCPSPCB0001. If there’s any issue with the number itself I’m seeing no information as to what that could be. As I understand it you can make your SKU anything. Is that not right? I also tried making a listing with a blank SKU for Amazon to generate one for me and it idd, but the language was still resetting to blank. As far as I can see only the language form field is preventing me from completing my listings. The same thing is happening to both.

I’ve asked support and I am stuck in a loop of the same few suggestions that have not worked. They are to clear my cache, history etc. to log out, to delete listings and start again, to try a different browser, to try different computer. I was also asked to set language from upload multiple – but that function is only available to professional sellers so as an individual seller it was not relevant to me. When I pointed this out and asked for instructions that I as an individual seller could follow I was offered information on the difference between accounts (?!). So I pointed out my issue again to which I got a message in Chinese (?!), I replied why is this in Chinese when all the previous messages have been in English and they replied to say the issue was my product didn’t have a name (yes it did) and to set the item name, I sent a screenshot showing the item name and the red language form field and they’ve circled back to clear your cache try other computers etc. (for the fourth time now).

I keep saying that this seems to be a bug on Amazon’s side and asking for the case to be escalated but I’ve not had any helpful replies from support yet. It’s been many days of back and forth messages of me restating the issue and either being asked to try something I’ve already tried, or messages that don’t seem to be anything to do with my case, leading me to having restate what my issue is ad infinitum.

Does anyone have any idea what’s going on? Am I doing something wrong? Has anyone seen this before?

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