"Expensive keywords" search error with saved searches (error 243009)

[phillibucha_0]

I have a number of saved eBay searches that I view in the IOS app. After the latest app updated, when I try to refresh the searches, I receive the following error message:

"The request contains expensive keywords, which return a large number of items. Expensive keywords must be joined with additional keywords. For example, new is not allowed, but new book is allowed. you can also reduce the results by entering a keyword followed by the terms you'd like to remove. Example: shoes - nike (request.Search.243009)"

When I run the searches in my PC browser, however, they work. Most of them pull up fewer than 50 results, contrary to what the error message would suggest.

What's going on here?