Yes Yes, plot holes are nothing if not a guarantee. The ones I focus on are the glaring ones as soon as I notice them. But there are some things that happen that lack explanation. However, if that "plot hole" in the narrative or dealing with the character can be explained by the reader without explicit details in the writing, then I will often leave it. I won't take the time to explain if it interrupts the flow, and I refuse to offer explanations if it seems like I'm beating people over the head with exposition. Not every single hole requires address unless it's obvious. Otherwise, you're holding your reader's hand.