I am not able to find a couple of my saved items in the drop down of "Add product or service" They dont exist When I add new, it says they already exist I cant use them

While creating a new invoice, in the product/services drop down, I start to type in Labor and its not popping up So I go to add new and type it in and when tapping submit, it says it already exists But again, it wont show up in the add product/service field So I cannot use Labor I had to create a new one "Labor." and that worked but then the next time I logged in I had the same exact problem, "Labor." doesn't show up and when adding new, it says it already exists. So I then created "Labor-" and that worked that day But then same problem repeats. The Boss says I cant use different variations of the word Labor and I need to figure out how to fix it. It's not just labor causing a problem, a few other like "Time Travel" is doing the same thing. But most of my products and services are popping up and working