Trouble with Bing Custom Search Hosted UI

Been using Hosted UI for a few months now for our site of 3k+ pages, very happy.

Today around 3:45 or so the results started appearing incorrectly. 

Logged into customsearch.ai > My Instance > Test using the right hand section (enter a query...) and it shows correct results.

Now I click on Hosted UI tab > scroll to bottom of page > Consuming the UI > Option 2 > Click on URL: 

The results are entirely different and incorrect. 

 

The Consuming UI link:

https://ui.customsearch.ai/hosted?customConfig=3337725077&market=en-us&safesearch=moderate

Using query "size pipe" Currently shows 5 results, none of which are correct. 

 

A similar Bing.com search, using this search query "site:landfx.com size pipe" currently shows some correct results, certainly more than the link above.

 

But the weird thing is, in customsearch.ai > Definition Editor > test on right side of screen > shows great results with ideal pages appearing that aren't at the top of the other two results.

 

I'm very confused as to :

1) Why this started happening right now

2) Why I'm getting wildly different results from all three tests

 

Perhaps this is related to bing.com/webmaster? In Google Search Console I've tested my sitemap - no errors found, 3,496 pages submitted. In Bing Webmaster > Configure site > Sitemaps, the very same sitemap shows zero URLs submitted. 

 

Another test I just did:

Query: "Plant Data"

Bing site:landfx.com top result: Plant Data and adding Custom Fields

Custom Search AI > Definition Editor > Test top result: Plant Manager
Hosted UI top result: Edit Our Default Plant Symbols 

 

The Hosted UI results did not include either of the other two test's results at all.

 

Thanks in advance for any insight.