@Bailey95. Yes, there is apparently a tech glitch when searching an area with no date input or I'm flexible (any week, any weekend) search function for many listings. Has been reported to ABNB Superhost support who have said has been referred to the tech team to investigate. So its not you.
Confusingly it does show up once dates are entered. There are not thousands of listings in our area to confuse the algorithm either but I have some listings missing and some show in a flexible search so not at a host level either from what I can tell.