"Apparently English was the only language affected."
Actually, it seems that also other languages are having problems. I tried searching just now sentences in Italian and Esperanto contibuted in a span of time from two days ago to yesterday and they're not indexed yet
personally, I use order=random in the advanced search because generally I see from there more diversity (whether I use it for translating sentences or for tagging existing ones), since, in a general way, sorting by word order might present similar patterns (which I use whenever I want to translate or tag the same pattern)
I tried with some lists, including one containing almost 400 sentences, and it worked properly.
In the meanwhile, I have a few suggestions:
1) I'd like to see the ID of sentences. For example: I download some lists for whatever reason, and, if I notice any mistake in a sentence and I want to report the mistake on Tatoeba, I would personally find it quicker to copy and paste the ID rather than the sentence.
2) I would find a delete button useful. If I download something and then I notice it isn't the thing I wanted to actually download, I'd like to have the opportunity to delete it, since this would avoid any confusion to the user if he/she has the need to download many things, and, not less important, doing this would free some space on the server.
3) What about mentioning the license of the sentences contained in lists? Maybe this would be helpful if someone wants to reuse them.
my guess is that the search engine had to scan again the corpus and save your language change, so, initially, it recognized your sentence as English, then, when it updated, it recognized this sentence as Turkish